Where does “cucumer” come from?

cucumer (Middle English) comes from Old French cocombre, from Latin cucumis, from Sumerian 𒄾 — fat-tailed sheep.

Ancestry of “cucumer”, step by step

Step	Language	Word	Meaning
1	Old French	cocombre	cucumber
2	Latin	cucumis	Armenian cucumber, snake melon, vegetable melon,...
3	Sumerian	𒄾	fat-tailed sheep

cucumer — Etymology, Origin & Word History | Etymology Explorer