Where does “-kos” come from?

-kos (Proto-Italic) comes from Proto-Indo-European -ḱos — -y, -ic.

Ancestry of “-kos”, step by step

Step	Language	Word	Meaning
1	Proto-Indo-European	-ḱos	-y, -ic

Words derived from “-kos”

Every word from Proto-Indo-European -ḱos →

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