Meaning

verb expel (gases or odors)

verb give off, send forth, or discharge; as of light, heat, or radiation, vapor, etc.

verb express audibly; utter sounds (not necessarily words)

originEtymology tree Proto-Indo-European *h₁éǵʰ Proto-Indo-European *-s Proto-Indo-European *h₁éǵʰs Proto-Italic *eks Latin ex Latin ex- Proto-Indo-European *mey-? Proto-Indo-European *meyth₂- Proto-Indo-European *-eti Proto-Indo-European *méyth₂eti Proto-Italic *meitō Old Latin mītō Latin mittō Latin ēmittōbor. English emit Borrowed from Latin ēmittō.

Etymology from Wiktionary, CC BY-SA 3.0