Where does “eclipsis” come from?

eclipsis (Latin) comes from Ancient Greek ἔκλειψις, from Ancient Greek ἐκλείπω, from Ancient Greek ἐκ, from Proto-Hellenic *eks.

Ancestry of “eclipsis”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	ἔκλειψις	disappearance, abandonment; especially...
2	Ancient Greek	ἐκλείπω	I leave out, pass over; I forsake, desert,...
3	Ancient Greek	ἐκ	Out of, from; from, with the source of; to denote...
4	Proto-Hellenic	*eks	—

eclipsis — Etymology, Origin & Word History | Etymology Explorer