Where does “schema” come from?

schema (Latin) comes from Ancient Greek σχῆμα, from Ancient Greek ἔχω, from Proto-Hellenic hékʰō, from Proto-Indo-European seǵʰ- — to hold; to overpower.

Ancestry of “schema”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	σχῆμα	form, shape, figure; appearance, show, pretense;...
2	Ancient Greek	ἔχω	I have, possess, contain, own; I hold; I have...
3	Proto-Hellenic	hékʰō	—
4	Proto-Indo-European	seǵʰ-	to hold; to overpower

Every word from Proto-Indo-European seǵʰ- →

schema — Etymology, Origin & Word History | Etymology Explorer