Abort
mid 16th century: from Latin aboriri ‘miscarry’, from ab- ‘away, from’ + oriri ‘be born’.
wiktionary
From Middle English, from Latin abortus, perfect active participle of aborior(“miscarry”), formed from ab + orior(“come into being”). Doublet of abortus.
From Latin abortare, from abortus, from aboriri(“miscarry”), from ab-(“not”) + oriri(“come into being, arise, appear”).
etymonline
abort (v.)
1570s, "to miscarry in giving birth," from Latin abortus, past participle of aboriri "to miscarry, be aborted, fail, disappear, pass away," a compound word used in Latin for deaths, miscarriages, sunsets, etc., which according to OED is from ab, here as "amiss" (see ab-), + stem of oriri "appear, be born, arise," from PIE *heri- "to rise" (see origin). [Watkins, contra de Vaan, etc., derives the second element from a suffixed form of PIE root *er- (1) "move, set in motion."]
The English word is attested from 1610s as "to deliberately terminate" anything (intransitive), but especially a pregnancy in a human or animal. Intransitive use in aeronautics and space-flight is by 1946. Transitive meaning "to cause (a woman) to miscarry" is recorded by 1916; with the fetus or pregnancy as the object of the action, by 1966. Related: Aborted; aborting. The Latin verb for "produce an abortion" was abigo, literally "to drive away."
