Where does “semeio-” come from?

semeio- (Italian) comes from Ancient Greek σημεῖον, from Ancient Greek -ῐος, from Proto-Indo-European -yós — Creates adjectives from noun or verb stems.

Ancestry of “semeio-”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	σημεῖον	a mark, sign, token; an indication; tomb; sign...
2	Ancient Greek	-ῐος	belonging to; of”, “belonging to”, “pertaining to
3	Proto-Indo-European	-yós	Creates adjectives from noun or verb stems

Words derived from “semeio-”

semeiologo

Every word from Proto-Indo-European -yós →Every word from Ancient Greek -ῐος →Every word from Ancient Greek σημεῖον →