<entry id="2183167" stat="D" corpus="jmnedict" type="jmnedict">
<ent_corp type="jmnedict">jmnedict</ent_corp>
<ent_seq>5002504</ent_seq>
<r_ele>
<reb>こてふ</reb>
</r_ele>
<sense>
<misc>&given;</misc>
<gloss>Kochou</gloss>
</sense>
<info>
<audit time="2022-04-09 15:05:03" stat="D" unap="true">
<upd_name>Stephen Kraus</upd_name>
<upd_email>...address hidden...</upd_email>
<upd_detl>Kochō (こちょう) [given] is covered by seq 5002493

I know JMdict aims to be a dictionary of modern Japanese. I suppose that's true for JMnedict too?</upd_detl>
<upd_refs>https://sakura-paris.org/dict/%E5%AD%A6%E7%A0%94%E5%8F%A4%E8%AA%9E%E8%BE%9E%E5%85%B8/content/704_728
"こてふ【胡蝶】〔現代かな遣い〕こちょう"

Sounds like this one is another old spelling (like けふこ)</upd_refs>
</audit>
<audit time="2022-04-09 23:12:10" stat="D">
<upd_uid>Marcus</upd_uid>
<upd_name>Marcus Richert</upd_name>
<upd_email>...address hidden...</upd_email>
<upd_detl>We include some archaicisms but with very few exceptions, we don't include entries based on thr historic kana system</upd_detl>
</audit>
</info>
</entry>