Sankoku, meikyo, iwakoku, etc. have these two [abbr] senses.

@@ -23,0 +24,13 @@
+</sense>
+<sense>
+<pos>&n;</pos>
+<xref type="see" seq="1205360">格子戸</xref>
+<misc>&abbr;</misc>
+<gloss>lattice door</gloss>
+</sense>
+<sense>
+<pos>&n;</pos>
+<xref type="see" seq="1685520">格子縞</xref>
+<misc>&abbr;</misc>
+<gloss>check(ed) pattern</gloss>
+<gloss>plaid</gloss>

https://ejje.weblio.jp/content/trellis

@@ -22,0 +23 @@
+<gloss>trellis</gloss>

@@ -27 +27,2 @@
-<gloss>merit (in Christian theology)</gloss>
+<field>&Christn;</field>
+<gloss>merit</gloss>

My mistake. "merit" is sense 1, see
功徳蔵　in daijr: 
〘仏〙 ① 功徳を積んだもの。
(and daijr's 功徳 entry is
① よい果報を得られるような善行。普通、供養くよう・布施ふせの類をいう。 「 －を施す」 ② 以前によいことをしたために、実現したよい報い。神仏が与えるよい
報い。)

@@ -12,0 +13 @@
+<gloss>merit</gloss>
@@ -16 +16,0 @@
-<gloss>merit-making</gloss>
@@ -21 +21,3 @@
-<gloss>merit</gloss>
+<gloss>divine reward (for virtuous deeds)</gloss>
+<gloss>grace (of the buddhas and gods)</gloss>
+<gloss>blessing</gloss>

daij wiki gg5 世界大百科事典 brit etc.
brit: 仏教用語。善根を積むことによって報いられる功能福徳の意。属性，性質を意味するサンスクリット語グナ guṇaの訳語。それが「良い性質」「善いこと」の意
に用いられ，さらに「利益」「すぐれた点」の意に転じて用いられた。
daijs: "以前によいことをしたために、実現したよい報い。神仏が与えるよい報い。"

_
Christian sense: jawiki, Brit

The usual translation of 功徳/利益(りやく) is "merit". 
https://en.wikipedia.org/wiki/Merit_(Buddhism)
"Merit is a force that results from good deeds done"
I don't think "grace" is a good translation for this because of the connotations of unconditional love. There's nothing unconditional 
about Buddhist merit, you have to the good deeds to get it.

@@ -14,0 +15,2 @@
+<gloss>act of charity</gloss>
+<gloss>merit-making</gloss>
@@ -19,2 +21,6 @@
-<gloss>grace (of the buddhas and gods)</gloss>
-<gloss>blessing</gloss>
+<gloss>merit</gloss>
+</sense>
+<sense>
+<pos>&n;</pos>
+<gloss>merit (in Christian theology)</gloss>
+<gloss>meritum</gloss>

日マワリ	    0
日まわり	1,492

@@ -12,0 +13,4 @@
+<ke_inf>&sK;</ke_inf>
+</k_ele>
+<k_ele>
+<keb>日まわり</keb>

日回り is in several kokugos, so we'd tag it [rK}.

@@ -9 +9 @@
-<ke_inf>&sK;</ke_inf>
+<ke_inf>&rK;</ke_inf>

向日葵	408179	9.6%
ひまわり	3408667	80.6%
ヒマワリ	412362	9.7%
日回り	777	0.0%
日廻り	653	0.0%

https://zatugaku-gimonn.com/entry1050.html
向日葵を「ひまわり」と読むのは”熟字訓（じゅくじくん）”と言われる読み方で、
熟字訓とは漢字１字に読み方をあてるのではなく、熟字（２字以上の漢字の組み合わせ）に訓読みをあてた読み方のことです。

pretty apparently 熟字訓 I think, dug up a random reference to support it.

Added another rare form off of wikipedia, [sK]'d both of them (super-rare).

@@ -8,0 +9,5 @@
+<ke_inf>&sK;</ke_inf>
+</k_ele>
+<k_ele>
+<keb>日廻り</keb>
+<ke_inf>&sK;</ke_inf>
@@ -11,0 +17 @@
+<re_inf>&gikun;</re_inf>

daij

@@ -20 +19,0 @@
-<s_inf>向日葵 is irregular</s_inf>

ひまわり	3408667
ヒマワリ	412362
向日葵	408179
日回り	777

Is the note correct?
If it were, why not use [iK]?

ルミナス (has the idiom)

@@ -13,0 +14 @@
+<gloss>six of one and half a dozen of another</gloss>

This is equivalent to the English idiom of "six of one half a dozen of another"

Kanji Haitani list

Adding yoji tagAdding yoji tag
-*- via bulkupd.py -*-

@@ -11,0 +12 @@
+<misc>&yoji;</misc>

G n-grams:
魔導	189514
魔道	346486
まどう	33749

No refs have 魔導. I really wonder if it should be in this entry.

@@ -5 +5 @@
-<keb>魔導</keb>
+<keb>魔道</keb>
@@ -8 +8 @@
-<keb>魔道</keb>
+<keb>魔導</keb>

prog daij
jawiki (only one to include "sorcery")
https://ja.wikipedia.org/wiki/魔道

@@ -17,0 +18 @@
+<gloss>path of evil</gloss>
@@ -22 +23,8 @@
-<gloss>magic</gloss>
+<gloss>black magic</gloss>
+</sense>
+<sense>
+<pos>&n;</pos>
+<xref type="see" seq="1917030">六道</xref>
+<field>&Buddh;</field>
+<gloss>netherworld</gloss>
+<gloss>world outside the six realms where evil spirits roam</gloss>

gg5
koj: 冥土に同じ。

Two senses in meikyo.

@@ -11,0 +12 @@
+<xref type="see" seq="1531280">冥土</xref>
@@ -12,0 +14,5 @@
+<gloss>the other world</gloss>
+<gloss>underworld</gloss>
+</sense>
+<sense>
+<pos>&n;</pos>

死後の世界。冥土。特に、地獄。
I agree that we should not overuse terms from Greek etc. mythology

@@ -12 +11,0 @@
-<gloss>hades</gloss>
@@ -14 +13 @@
-<gloss>sheol</gloss>
+<gloss>hell</gloss>

daijr
死後の世界。冥土。特に、地獄。閻魔(えんま)の庁。[補説]書名別
項。→冥府
デジタル大辞泉
冥府
死後の世界。冥土。また，地獄。

Are "Hades" and "Sheol" the most appropriate here? Wouldn't a 
more general "hell" be better, seeing as they have little to 
do with Greek/Hebrew mythology

Daijirin, gg5, and smk mention 洞.
Koj and daijisen mention 洞ろ.

@@ -16 +16 @@
-<ke_inf>&sK;</ke_inf>
+<ke_inf>&rK;</ke_inf>

Google N-gram Corpus Counts
╭─ーーー─┬─────────┬───────╮
│ うつろ │ 121,019 │ 49.4% │
│ 虚ろ　 │ 112,656 │ 46.0% │
│ 空ろ　 │  11,157 │  4.6% │
│ 洞ろ　 │      68 │  0.0% │
╰─ーーー─┴─────────┴───────╯

@@ -11,0 +12 @@
+<ke_inf>&rK;</ke_inf>
@@ -14,0 +16 @@
+<ke_inf>&sK;</ke_inf>

daijr, daijs, gg5

"「洞(ろ)」とも書く" only applies to sense 1.

@@ -26,0 +27,2 @@
+<stagk>虚ろ</stagk>
+<stagk>空ろ</stagk>
@@ -28,4 +30,4 @@
-<gloss>hollow (voice)</gloss>
-<gloss>empty (heart)</gloss>
-<gloss>blank (eyes, face, etc.)</gloss>
-<gloss>vacant (stare)</gloss>
+<gloss>hollow (voice, smile, etc.)</gloss>
+<gloss>blank (eyes, look, etc.)</gloss>
+<gloss>vacant (expression, stare, etc.)</gloss>
+<gloss>empty (words, heart, etc.)</gloss>

@@ -13,0 +14 @@
+<misc>&on-mim;</misc>
@@ -22,0 +24 @@
+<misc>&on-mim;</misc>

gg5 daijs
ぐんにゃり	4080
ぐんなり	280

@@ -5,0 +6,3 @@
+</r_ele>
+<r_ele>
+<reb>ぐんなり</reb>

reopen

@@ -13 +13 @@
-<gloss>Kshitigarbha (bodhisattva who looks over children, travellers and the underworld) (travelers)</gloss>
+<gloss>Kshitigarbha (bodhisattva who looks over children, travellers and the underworld)</gloss>

There are about 15 of the X+菩薩 style of entry, and yes it would be a clutter. However 地蔵菩薩 is probably the one that most people encounter, so I don't think it hurts to have the xref here.

Adding xrefs from all <name> + 菩薩 entries to 菩薩
may add too much clutter

maybe helpful?

@@ -11,0 +12 @@
+<xref type="see" seq="1515240">菩薩・1</xref>

int rather than exp, I think (even if it's 
net slang)

@@ -14 +14 @@
-<pos>&exp;</pos>
+<pos>&int;</pos>

This is almost always used as an expression. Makes sense to gloss it as one.

@@ -14 +14 @@
-<pos>&n;</pos>
+<pos>&exp;</pos>
@@ -18 +18 @@
-<gloss>strong agreement</gloss>
+<gloss>I strongly agree</gloss>

I agree.

The exceptions I can think of are
1. the meaning of Xに does not readily follow from the meaning of Xな
2. Xに is a headword in Japanese dictionaries

As a general rule I agree with that.

No.
As a general rule we should not have Xに[adv]
if we already have X[adj-na].

Given that we have 定期的 as an entry, and it's a perfectly regular 形容動詞, do we really need this ~に version?

@@ -13,0 +14,2 @@
+<gloss>periodically</gloss>
+<gloss>routinely</gloss>

daijs

@@ -5,0 +6 @@
+<ke_inf>&ateji;</ke_inf>

daij

@@ -19,0 +20 @@
+<misc>&derog;</misc>

remove it then

@@ -20 +19,0 @@
-<misc>&uk;</misc>

The "uk" is probably not correct.

やつばら	604
奴原	557
奴ばら	396
奴儕	No matches  - in koj, daijs

@@ -7,0 +8,3 @@
+<keb>奴ばら</keb>
+</k_ele>
+<k_ele>
@@ -8,0 +12 @@
+<ke_inf>&oK;</ke_inf>
@@ -15,0 +20 @@
+<misc>&uk;</misc>

GG5 (sense 1), Wikij (sense 2). G n-grams: 96352
https://ja.wikipedia.org/wiki/フルフル
https://en.wikipedia.org/wiki/Furfur

It came up as a relatively high-scoring entry in GG5 missing from JMdict, but the score is almost certainly due to sense 2.

@@ -9 +8,0 @@
-<s_inf>brand name</s_inf>
@@ -11 +10 @@
-<gloss>polytetrafluorethylene</gloss>
+<gloss g_type="expl">brand name for polytetrafluorethylene</gloss>

Daijr, GG5, etc. etc. N-grams: 178k

Since it's a common material, it should be here.

GG5, 理化学英和辞典, Eijiro. N-grams: 3697

actually, this could be merged with ぐんにゃり

@@ -10,0 +11 @@
+<xref type="see" seq="1631870">ぐんにゃり・1</xref>
@@ -20 +21 @@
-<xref type="see" seq="1631870">ぐんにゃり・1</xref>
+<xref type="see" seq="1631870">ぐんにゃり・2</xref>

gg5 daijs
ぐんにゃり	4080
ぐんなり	280

@@ -8,0 +9 @@
+<pos>&adv;</pos>
@@ -10 +10,0 @@
-<misc>&on-mim;</misc>
@@ -12,0 +13,8 @@
+<gloss>enervated</gloss>
+<gloss>having no energy</gloss>
+</sense>
+<sense>
+<pos>&adv-to;</pos>
+<pos>&adv;</pos>
+<pos>&vs;</pos>
+<xref type="see" seq="1631870">ぐんにゃり</xref>
@@ -15 +23,2 @@
-<gloss>having no energy</gloss>
+<gloss>soft</gloss>
+<gloss>having no shape</gloss>

gg5 koj daijs
ぐんなり	280	  
ぐんなりと	73	  
ぐんなりした	50

daij

daijr, jawiki

GG5 "the Enma's shrine".

Not sure that GG5 gloss is much use.

daijs 堂[2]: 神仏を祭る建物

No harm in adding it; we already have 観音堂, 阿弥陀堂
I think a 堂 is a major building within a 寺

@@ -13 +13 @@
-<gloss>temple dedicated to Yama</gloss>
+<gloss>temple hall dedicated to Yama</gloss>

As a rule of thumb, we only apply the A+B test (and ngrams 
etc.) if a certain word is not already an entry in other 
dictionaries.

Maybe too A+B
We could add <name>+堂 for any Buddhist deity.

daij

see 行目 2611010 and  行目 2626950

http://ejje.weblio.jp/content/行目
http://eow.alc.co.jp/search?q=行目&ref=sa