Given that we have entries for 他に and 何か, I don't think there's much value in a 他に何か entry. The meaning is obvious and it's not usually a standalone expression.
I think 他に何かある is too compositional.

Twitter results for 他に何かある
https://twitter.com/search?q="他に何かある"&src=typed_query&f=live

https://www.bizmates.jp/blog/sonota-eigo/
What else?
他の何か

https://eigo.today/anything-else/
他に何かありませんか  Is there anything else?

A little late to the party, but I would have kept this too. Could have maybe made it:
他に何かある	7514

That's often the longer sentence. And the reader can conjugate (他に何かありますか、他に何かありませんか、etc.)

I'm pretty sure in informal language 他に何か can stand alone in the same way. 

(just passing through looking for deleted entries to test jisho.org's behavior deletion behavior.  If this vote makes no difference, don't mind me).

I'd have kept it. Useful, and there were 7 sentences linked to it.

I don't think this should be an entry. It just means "anything else". It's usually part of a longer sentence.

Indeed, but now that そうこん is tagged as [form], they're best kept separate.

爪痕	61001	32.5%
爪あと	44737	23.8%
爪跡	18883	10.0%
つめ跡	9892	5.3%
ツメ跡	2076	1.1%
ツメアト	737	0.4%
つめあと	5906	3.1%

Merging the two would not be so complicated now that we've adopted a simplified reading restrictions system.

@@ -14,0 +15 @@
+<ke_inf>&sK;</ke_inf>
@@ -17,0 +19 @@
+<ke_inf>&sK;</ke_inf>
@@ -21,8 +22,0 @@
-<re_restr>爪痕</re_restr>
-<re_restr>爪あと</re_restr>
-<re_restr>爪跡</re_restr>
-<re_restr>つめ跡</re_restr>
-</r_ele>
-<r_ele>
-<reb>ツメあと</reb>
-<re_restr>ツメ跡</re_restr>
@@ -32,2 +25,0 @@
-<xref type="see" seq="2846304">爪痕・そうこん</xref>
-<xref type="see" seq="2846304">爪痕・そうこん</xref>

三省堂国語辞典
つめあと「爪痕」... (definitions agree with current definitions, this is the only kanji given, no entry for そうこん whatsoever)

「爪痕(つめあと)を残す」 (a whole NHK article just on this expression, no alt kanji, no alt readings)
https://www.nhk.or.jp/bunken/research/kotoba/20210101_3.html

I see on 2846304 a comment by Jim Breen that there was an abandoned attempt to merge these two entries. (そうこん 爪痕).  I don't have a strong opinion on merging them or not, but this seems to have left an odd situation.

1. The most common reading of 爪痕 appears to actually be つめあと. But if you look up 爪痕 by kanji in this dictionary, you now get an entry with only one reading そうこん, and a reference to this entry, where 爪痕 is a *secondary* reading of つめあと.

2. 爪痕 appears to be the most common kanji for つめあと, not 爪跡.  My modern dictionary, for example, *only* gives 爪痕, and does not even contain an entry for the reading "そうこん".

Beyond my one dictionary reference, you need only google 爪痕 to see that つめあと is the most common reading.  The n-grams already cited here support this interpretation (granted a confounding factor from そうこん). 

I'm submitting a parallel change to the other entry that I think reconciles things "well enough" without merging the two entries.  Mark そうこん as [form], reference this entry using the same kanji 爪痕, re-order the kanji in this entry so that 爪痕 is the most common entry. Provide a back reference from this entry to the other to identify the existence of the literary form.

@@ -4,3 +3,0 @@
-<k_ele>
-<keb>爪跡</keb>
-</k_ele>
@@ -11,0 +9,3 @@
+</k_ele>
+<k_ele>
+<keb>爪跡</keb>
@@ -21 +20,0 @@
-<re_restr>爪跡</re_restr>
@@ -23,0 +23 @@
+<re_restr>爪跡</re_restr>
@@ -31,0 +32 @@
+<xref type="see" seq="2846304">爪痕・そうこん</xref>

daij, prog
G n-grams:
爪痕	61001
爪跡	18883
爪あと	44737
つめ跡	9892
ツメ跡	2076
つめ痕	431
ツメ痕	195

@@ -9,0 +10,9 @@
+<k_ele>
+<keb>爪あと</keb>
+</k_ele>
+<k_ele>
+<keb>つめ跡</keb>
+</k_ele>
+<k_ele>
+<keb>ツメ跡</keb>
+</k_ele>
@@ -11,0 +21,8 @@
+<re_restr>爪跡</re_restr>
+<re_restr>爪痕</re_restr>
+<re_restr>爪あと</re_restr>
+<re_restr>つめ跡</re_restr>
+</r_ele>
+<r_ele>
+<reb>ツメあと</reb>
+<re_restr>ツメ跡</re_restr>
@@ -20 +37,2 @@
-<gloss>scar</gloss>
+<gloss>scars (e.g. of war)</gloss>
+<gloss>traces (of damage)</gloss>

I believe we usually don't apply the [rK] tag in rare / archaic entries.
See entry 2856528 for example.

@@ -9 +8,0 @@
-<ke_inf>&rK;</ke_inf>

憂戚 is in Koj and Daijisen; 憂慼 seems only to be in Jitenon. 慼 is a very rare kanji - it isn't in JIS 208 but is in JIS 212/213. I'd keep the entry with the [rare] tag. The xref seems unnecessary.

@@ -16 +15,0 @@
-<xref type="see" seq="1540830">憂愁・ゆうしゅう</xref>

After all that, I forgot to add the kanji.  

I marked 憂慼 [rK], but on the other hand I'm not sure that 憂戚, using 戚/せき to mean "grief", is particularly common in modern Japanese either.

@@ -5,0 +6,4 @@
+</k_ele>
+<k_ele>
+<keb>憂慼</keb>
+<ke_inf>&rK;</ke_inf>

憂戚（ゆうせき）
うれい悲しむこと。
https://dictionary.goo.ne.jp/word/憂戚/


ゆう‐しゅう〔イウシウ〕【憂愁】 の解説
うれえ悲しむこと。気分が晴れず沈むこと。「―に閉ざされる」
https://dictionary.goo.ne.jp/word/憂愁/#jn-224231

One note: I didn't pull "憂愁" out of a hat as a synonym/cross-reference for "grief" (as there are many "grief" synonyms to choose from). dictionary.goo.ne.jp gives a definition of ゆうせき of
うれい悲しむこと。
It gives the exact same definition for 憂愁, the two terms share the same initial kanji, and looking at the N-gram corpus it certainly seemed common enough to be a reasonably safe suggestion.

Google N-gram Corpus Counts
憂愁	36390

wisdom

@@ -23,0 +24,2 @@
+<gloss>about</gloss>
+<gloss>around</gloss>

ほぼ新品	1489258
ほぼ同じ	1011367
ほぼ毎日	867822
略新品	40
略同じ	4450
略新品	40
粗新品	No matches
粗同じ	230
粗毎日	75

@@ -6,3 +6 @@
-<ke_pri>ichi1</ke_pri>
-<ke_pri>news1</ke_pri>
-<ke_pri>nf16</ke_pri>
+<ke_inf>&rK;</ke_inf>
@@ -11,0 +10 @@
+<ke_inf>&rK;</ke_inf>

向う側 is the only form displayed in koj and obunsha

@@ -10 +9,0 @@
-<ke_inf>&sK;</ke_inf>

向こう側	795680	95.7%
向こうがわ	6914	0.8%
向う側	20223	2.4%
向側	8870	1.1%

@@ -9,3 +8,0 @@
-<keb>向こうがわ</keb>
-</k_ele>
-<k_ele>
@@ -12,0 +10 @@
+<ke_inf>&sK;</ke_inf>
@@ -16 +14,5 @@
-<ke_inf>&io;</ke_inf>
+<ke_inf>&sK;</ke_inf>
+</k_ele>
+<k_ele>
+<keb>向こうがわ</keb>
+<ke_inf>&sK;</ke_inf>

@@ -12,0 +13,3 @@
+</k_ele>
+<k_ele>
+<keb>向側</keb>

daij G-ngrams

@@ -8,0 +9,3 @@
+<keb>向こうがわ</keb>
+</k_ele>
+<k_ele>
@@ -9,0 +13 @@
+<ke_inf>&io;</ke_inf>

@@ -16 +16 @@
-<gloss>Shinbashi (section of Tokyo)</gloss>
+<gloss>Shinbashi (Tokyo)</gloss>

https://www.edrdg.org/wiki/index.php/Editorial_policy#Part-Of-Speech_(POS)_Issues
"in general the form of the meaning should agree with the first part-of-speech tag for the sense. If the Japanese word is marked as a noun, don't make the translation a verb (e.g. to xxxx) or an adjective."

"emotionless" and "expressionless" are adjectives.

@@ -20,2 +19,0 @@
-<gloss>emotionless</gloss>
-<gloss>expressionless</gloss>

Added the definitions "emotionless" and "expressionless" since those terms are more accurate and used more when looking up this term. It's also to make it easier to find and a more accurate translation.

@@ -19,0 +20,2 @@
+<gloss>emotionless</gloss>
+<gloss>expressionless</gloss>

Noun glosses.

@@ -19,2 +19 @@
-<gloss>emotionless</gloss>
-<gloss>expressionless</gloss>
+<gloss>lack of emotion</gloss>

@@ -18,0 +19,2 @@
+<gloss>emotionless</gloss>
+<gloss>expressionless</gloss>

思いのほか	469536	73.1%
思いの外	        121622	18.9%
思いの他	        51380	8.0%

I'm not sure about iK. The refs only have 思いの外 but 他 isn't an irregular kanji for ほか.

@@ -8,0 +9,4 @@
+</k_ele>
+<k_ele>
+<keb>思いの他</keb>
+<ke_inf>&iK;</ke_inf>

Dropping adjective gloss.

@@ -18 +17,0 @@
-<gloss>unexpected</gloss>

daijr/s, 中辞典, ウィズダム和英辞典
http://yourei.jp/思いの外

Adverbial usage is most common.

Occasionally [adj-no] as in "思いのほかの好成績" (daijs example).

思いのほかに is reasonably common but I'm not sure what to do about the tags. I considered adding [adj-na] but 思いのほかな gets very few real hits.

@@ -15 +15,3 @@
-<gloss>surprising</gloss>
+<pos>&adj-no;</pos>
+<gloss>unexpectedly</gloss>
+<gloss>surprisingly</gloss>

I'm quite comfortable with having good coverage of 複合動詞. They may be obvious to native speakers but not necessarily to learners, and they are good for reverse lookups.
I see [rare] as more a signal to non-native speakers to use it with caution.
We have a couple of example sentences using this one.

Google N-gram Corpus Counts
悼み悲しむ	114
憂い悲しむ	174

twitter for 憂い悲しむ
https://twitter.com/search?q=憂い悲しむ&src=typed_query

Examples of 憂い悲しむ used to define other terms:
憂愁
意味	憂い悲しむこと。心配して悲しむこと。
https://kokugo.jitenon.jp/word/p51782

憂戚（ゆうせき）
うれい悲しむこと。
https://dictionary.goo.ne.jp/word/憂戚/

ゆう‐しゅう〔イウシウ〕【憂愁】 の解説
うれえ悲しむこと。気分が晴れず沈むこと。「―に閉ざされる」
https://dictionary.goo.ne.jp/word/憂愁/#jn-224231


For Comparison on rarity(I happen to have just started studying 縋る): these *縋る entries are all in jmdict and in my J-J dictionary, likely because their meaning not so plainly obvious or directly derivable, but they appear no less rare than 悼み悲しむ and are not marked [rare] in jmdict:
泣き縋る	184
取り縋る	291
寄り縋る	77

When looking at dictionary definitions for another entry on grief (憂戚), I randomly encountered another *悲しむ example, 憂い悲しむ. Looking at the n-grams, it is even more common than this entry, is *also* frequently used to define other terms (its meaning is readily understood), and also does not appear in 国語辞典 as a standalone entry。 It's also common enough (but not super common) in a twitter search.

And, 憂い悲しむ is another term I can't imagine being added to this dictionary.　

For reference, my little 国語辞典 has zero entries ending in 悲しむ, which is to say that I don't think absence from 国語辞典 is an inherent statement on rarity for such terms.

Since this entry appears to be still open, and given some indication that I may not be the only one who feels [rare] is a bit incongruous, I'd lean towards deleting this entry over leaving it here as [rare].  

There seems to be some consensus that this entry might not be re-created today based on current criteria for entry. That said, I feel like there might be some preference to keep terms once they are already in here - I guess I am still feeling that out.  I won't be bothered one way or the other about how this turns out, but I will find it instructive to see what the final decision is here.

Brian makes a good point.
There are so many 複合動詞 out there, mostly with meanings that are obvious from their parts, that we tend not to add them unless they're common (or listed in a major dictionary).
Given that 悼み悲しむ is comparatively uncommon and easy to translate, it's not a particularly useful entry. I wouldn't object to dropping it. Brian rightly assumes that we would reject 悲しみ悼む.
I do think [rare] looks a little odd here. To me, the tag implies that if a native speaker were to come across the word in writing, they might raise an eyebrow or suggest replacing it with another. That probably wouldn't happen with 悼み悲しむ.

Thank you Jim and Marcus, I appreciate the feedback.  I will keep that github link in mind for the future, and re-evaluate my understanding of [rare] in this database.

As a final note on this (not advocating for a change) I asked a handful of Japanese students the difference between 死を悼む,　死を悲しむ, and 死を悼み悲しむ, and the immediate response (besides some laughter because they are all very similar and difficult to tease apart) is that 悼み悲しむ is "more serious".  It's just duplication, basically a grammatical combination of mourning + mourning = really mourning.  Japanese speakers don't need a dictionary entry for this.  You can also build it in reverse 悲しみ悼む, a structure that is marginally less common: 

Google N-gram Corpus Counts
悲しみ悼む	75
悲しみ悼んで	26

As a learner I wouldn't vote to remove this entry, as I've clearly found it instructive. But I also kind of wonder if it would be added today if it weren't already here. Usually when I encounter [rare] it is to downplay an eccentric entry from some 国語辞典.  In this case, jmdict seems to have bucked the j-j dictionaries by including 悼み悲しむ, only to end up tagging it [rare].  If I suggested adding 悲しみ悼む (I have no intentions of doing this, don't worry), for example, I assume it would be rejected outright for rarity, obviousness, and absence in existing 辞典.

Apologies for the final cluttering-up of this entry's history.  It included some stats on the reversed 悲し悼む and some reports of Japanese feedback that might have some small relevance. But this does not require a response, and I am not advocating any further edits to this entry.  Thanks again.

Just want to add, Brian, that suggestions/questions relating to policy (e.g. "what is [rare] supposed to convey?") are better suited for the github: https://github.com/JMdictProject

Tagged as〔文〕in meikyo.

What is the difference between 爪痕(つめあと) and 爪痕(そうこん)?
https://hinative.com/questions/17336959

1. ... ただ「つめあと」の方が普通で、「そうこん」は音読みなので、小説や詩などに使われる感じがします。 ...
2. ... ｢つめあと」は訓読み、｢そうこん」は音読みによるものです。　音読みは、堅い感じがしますので、書き言葉で好まれます。
話し言葉では、｢きずあと」が一般的です。

I agree this stays kind of cleaner as two entries, but either way... See detailed thoughts 1433900.

Doesn't appear to be "rare" necessarily, but given two agreeing comments on hinative, the fact that this is an onyomi with a more common kunyomi, an the fact that my modest, modern J-J dictionary doesn't even provide an entry for そうこん, I imagine that [form] is accurate enough.

@@ -12,2 +12,3 @@
-<xref type="see" seq="1433900">爪跡・つめあと・1</xref>
-<xref type="see" seq="1433900">爪跡・つめあと・1</xref>
+<xref type="see" seq="1433900">爪痕・つめあと・1</xref>
+<xref type="see" seq="1433900">爪痕・つめあと・1</xref>
+<misc>&form;</misc>

Daijr, GG5
爪跡	18883
爪痕	61001

I started to merge this with 1433900 but it ended up too messy.

[vt]: sankoku

Google N-gram Corpus Counts
╭─ーーーーー─┬───────┬───────╮
│ 弾き歌い　 │ 9,278 │ 84.4% │
│ 弾き唄い　 │ 1,074 │  9.8% │
│ 弾きうたい │   388 │  3.5% │ - adding
│ 引き歌い　 │    45 │  0.4% │
│ ひき歌い　 │    44 │  0.4% │
│ 引き唄い　 │    27 │  0.2% │
│ ひき唄い　 │     0 │  0.0% │
│ 引きうたい │     0 │  0.0% │
│ ひきうたい │   133 │  1.2% │
╰─ーーーーー─┴───────┴───────╯

@@ -9,0 +10,4 @@
+<k_ele>
+<keb>弾きうたい</keb>
+<ke_inf>&sK;</ke_inf>
+</k_ele>
@@ -15,0 +20 @@
+<pos>&vt;</pos>

弾き歌い	9278
弾き歌いする	144
弾き歌いして	231
弾き歌いした	52
弾き歌いしました	46
弾き歌いします	28

弾き唄いして	34

弾き歌いのコツ！練習方法や向いている曲とは？
https://jje.ac.jp/column/17919
弾き歌いする　extensively throughout

Just makes sense that this would be take suru, and it's not hard to find examples in the wild (twitter, youtube, news, etc)

@@ -14,0 +15 @@
+<pos>&vs;</pos>

Considering the information that Wes provided, I think this is worth keeping.

The gloss could be better but I think that might be going a bit far.
I'm not sure this is needed as an entry. Changing す to ちゅ to sound cutesy isn't limited to 好き.

Maybe the glossing could better reflect that it's a cutesy, baby-speak-like term? Perhaps "me likely" "I wuv it", etc.?

Well-argued case.

https://en.wikipedia.org/wiki/Backcountry_skiing

Web results seem to be exclusively skiing-related.

@@ -12 +12,3 @@
-<gloss>backcountry (esp. wrt skiing)</gloss>
+<field>&ski;</field>
+<gloss>backcountry</gloss>
+<gloss>off-piste</gloss>

I don't think "wrt" is a commonly understood abbreviation.

KOD: 	〔人跡まれな場所･僻地〕 《米》(the) backcountry.
- all the examples relate to skiing.
ルミナス: 	(人里離れた奥地) 《主に米･豪》 the backcountry.

Very AmE. Dunno why ルミナス has "豪" - it's not a term used here. We say "outback".

@@ -12,2 +12 @@
-<gloss>back country</gloss>
-<gloss>countryside</gloss>
+<gloss>backcountry (esp. wrt skiing)</gloss>

might actually be specifically about skiing in

daijr
三隣亡	5445	93.0%
三輪宝	407	7.0%

@@ -15 +15 @@
-<gloss>unlucky day for starting house construction (which would lead to the burning of three nearby houses)</gloss>
+<gloss>unlucky day for starting construction of a house (which would result in a fire that spreads to three adjacent houses)</gloss>

@@ -15 +15 @@
-<gloss>unlucky day for starting house construction (would lead to the burning of three nearby houses)</gloss>
+<gloss>unlucky day for starting house construction (which would lead to the burning of three nearby houses)</gloss>

GG5, Koj, Daijr/s, etc.

The origin seems uncertain.

@@ -15 +15 @@
-<gloss>unlucky day (in the Onmyōdō calendar)</gloss>
+<gloss>unlucky day for starting house construction (would lead to the burning of three nearby houses)</gloss>

https://kotobank.jp/word/三隣亡-71618
https://ejje.weblio.jp/content/三隣亡

daijr, koj

GG5, 中辞典

chickenburger  887
chicken burger 13612

@@ -13 +13 @@
-<gloss>chickenburger</gloss>
+<gloss>chicken burger</gloss>

@@ -11,0 +12 @@
+<field>&food;</field>

Eijiro
チキンバーガー	9503

@@ -5,0 +6,3 @@
+</r_ele>
+<r_ele>
+<reb>チキン・バーガー</reb>

英辞郎１０３; 研究社リーダーズ＋プラスＶ２

GG5 【生化】, 医学英和辞典, etc.
ペルオキシダーゼ	5354

GG5

https://ejje.weblio.jp/content/国交樹立
https://eow.alc.co.jp/search?q=国交樹立

国交樹立	17728

Probably bogus.

Probably not.

Real entry?
One or two others here: https://www.edrdg.org/jmdictdb/cgi-bin/srchres.py?svc=jmdict&s1=2&y1=4&t1=さん&s2=1&y2=1&t2=&s3=1&y3=1&t3=&idtyp=seq&idval=&search=Search&src=2&stat=2&appr=appr&appr=unappr&nfcmp=&nfval=&snote=&snotem=0&smtr=&smtrm=0&ts0=&ts1=&refs=&refsm=0&cmts=&cmtsm=0&mt=0&grp=

@@ -11,0 +12,3 @@
+<gloss>Shinbashi (Tokyo)</gloss>
+</sense>
+<sense>
@@ -13 +16 @@
-<gloss>Shinbashi (section of Tokyo)</gloss>
+<gloss>Shinbashi</gloss>

Yes, it's kana.

ゝ is in the unicode kana block and we have a handful of entries in the name dictionary that use ゝ and ゞ in the Readings field.

The jmdict entry for ゝ places it in the Reading field.

@@ -4,3 +3,0 @@
-<k_ele>
-<keb>さゝき</keb>
-</k_ele>
@@ -8,0 +6,3 @@
+</r_ele>
+<r_ele>
+<reb>さゝき</reb>

https://ameblo.jp/ai2007ai/entry-12307718076.html
and other similar results

https://vgmdb.net/artist/21644