Where does “colen” come from?

colen (Middle English) comes from Old English cōlian, from Proto-West Germanic *kōlēn.

Ancestry of “colen”, step by step

Step	Language	Word	Meaning
1	Old English	cōlian	to cool, grow cold, be cold
2	Proto-West Germanic	*kōlēn	—

colen — Etymology, Origin & Word History | Etymology Explorer