Where does “key” come from?

key (Middle Dutch) comes from Old Dutch kei, from Proto-Germanic kagi-.

Ancestry of “key”, step by step

StepLanguageWordMeaning
1Old Dutchkei—
2Proto-Germanickagi-—

Words derived from “key”

Every word from Proto-Germanic kagi- →Every word from Old Dutch kei →
key — Etymology, Origin & Word History | Etymology Explorer