Earlier quoted context omitted.
Opposite of the topic (ultra-nonconserved?), "butterfly" is a word that is strangely different in even closely related European languages (Romance, Teutonic, Slavic). Doing a cursory check in Google Translate now, but I've one found one language pair where the words appear to be related: French: "papillon", Catalan "papallona". Otherwise: mariposa, бабочка, motyl, schmetterling, vlinder, sommerfugl, fjäril, farfalla,…
> All the Slavic languages known to Google Translate have a word related to motyl, except for Russian In Serbian and Croatian the word for butterfly is лептир/leptir.
Re: Ultraconserved words in use since the last Ice Age
#101pt*r being PIE wing as in pterodactyl ?