Where does “Butterfly” come from?
Butterfly (English) comes from Middle English boterflye, from Old English buterflēoge, from Old English butere, from Proto-West Germanic buterā, from Latin būtȳrum, from Ancient Greek βούτυρον, from Ancient Greek τυρός, from Proto-Hellenic tūrós — to swell; to crowd; to be strong.
Ancestry of “Butterfly”, step by step