Where does “camīnus” come from?

camīnus (Latin) comes from Ancient Greek κάμινος — oven, furnace, kiln; flue for warming a room.

Ancestry of “camīnus”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	κάμινος	oven, furnace, kiln; flue for warming a room

camīnus — Etymology, Origin & Word History | Etymology Explorer