Where does “バタフライ” come from?
バタフライ (Japanese) comes from English Butterfly, 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 — to swell; to crowd; to be strong.
バタフライ (Japanese): the butterfly
Ancestry of “バタフライ”, step by step