Where does “kit” come from?

kit (Middle English) comes from Middle English kitte, from Middle Dutch kitte, from Proto-West Germanic *kitte.

Ancestry of “kit”, step by step

StepLanguageWordMeaning
1Middle Englishkittewooden bucket or tub; belly
2Middle Dutchkittea wooden vessel made of hooped staves; wooden...
3Proto-West Germanic*kitte—
Every word from Proto-West Germanic *kitte →Every word from Middle Dutch kitte →Every word from Middle English kitte →
kit — Etymology, Origin & Word History | Etymology Explorer