Where does “butterfly” come from?

Butterfly comes from Old English butorflēoge, whose ultimate origin and meaning are unknown.

butterfly (English): A flying insect of the order "Lepidoptera",...

Definitions

  1. A flying insect of the order "Lepidoptera",...

Ancestry of “butterfly”, step by step

butterfly traces back through 3 separate lines of ancestry.

via Middle English buterflie

StepLanguageWordMeaning
1Middle EnglishbuterflieAlternative form of boterflye
2Old Englishbuterflēogebutterfly
3Old Englishbuterebutter
4Proto-West Germanicbuterābutter
5Latinbūtȳrumbutter
6Ancient Greekβούτυρονbutter
7Ancient Greekτυρόςcheese
8Proto-Hellenictūróscheese
9Proto-Indo-Europeantuh₂-ró-s
10Proto-Indo-Europeantewh₂-to swell; to crowd; to be strong

via Middle English boterflye

StepLanguageWordMeaning
1Middle Englishboterflyebutterfly; Something of little import or value; A...

via Middle English butturflye

StepLanguageWordMeaning
1Middle EnglishbutturflyeAlternative form of boterflye
Every word from Proto-Indo-European tewh₂-Every word from Proto-Indo-European tuh₂-ró-sEvery word from Proto-Hellenic tūrós
butterfly — Etymology, Origin & Word History | Etymology Explorer