Where does “-gamous” come from?

-gamous (English) comes from Ancient Greek γάμος, from Proto-Indo-European ǵem- — to marry.

-gamous (English): Having the specified number or form of marriage;...

Definitions

Step	Language	Word	Meaning
1	Ancient Greek	γάμος	marriage, wedding, bridelock; matrimony, the...
2	Proto-Indo-European	ǵem-	to marry

-gamous — Etymology, Origin & Word History | Etymology Explorer