Meaning

verb put out or expel from a place

verb eliminate (a substance)

verb leave an aircraft rapidly, using an ejection seat or capsule

originFrom Middle French éjecter, from Latin ēiectus, perfect passive participle of ēiciō (“to throw out”), or from ēiectō, the frequentative form of the same verb, from ē-, combining form of ex (“out”), + iaciō (“to throw”).

Etymology from Wiktionary, CC BY-SA 3.0