Where does “mule” come from?

mule (Anglo-Norman) comes from Old English mūl, from Proto-West Germanic *mūl, from Proto-Germanic mūlą, from Proto-Indo-European mū- — fly, mosquito; fly, midge; lips, muzzle.

Ancestry of “mule”, step by step

StepLanguageWordMeaning
1Old Englishmūl
2Proto-West Germanic*mūlmule
3Proto-Germanicmūląmuzzle
4Proto-Indo-Europeanmū-fly, mosquito; fly, midge; lips, muzzle

Words derived from “mule

Every word from Proto-Indo-European mū-