IPA: /ɪˈdʒɛktə/
KK: /ɪˈdʒɛktə/
Material that is thrown out from a volcano or other explosive event, such as ash, rocks, or lava.
The volcano released a large amount of ejecta during the eruption, covering the surrounding area in ash.
Ejecta is formed from "e-" (meaning out) and "jacere" (meaning to throw). The word refers to materials that are thrown out, particularly in the context of volcanic eruptions or other explosive events.
Think of something being 'thrown out' ('e-' means out and 'jacere' means to throw') — that's what ejecta refers to.