Word Origin See more synonyms on Thesaurus.com sexual intercourse, especially between a man and a woman. Origin of coitus 1705–15;
a coming together, uniting, sexual intercourse, equivalent to
suffix of v. action
Related forms co·i·tal, adjective co·i·tal·ly, adverb post·co·i·tal, adjective post·co·i·tal·ly, adverb pre·co·i·tal, adjective
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for precoital Derived Forms coital, adjective Word Origin
coitus: from Latin: a uniting, from coīre to meet, from īre to go
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Word Origin and History for precoital coitus n.
"copulation," 1713, scientific Latin, from Latin
coitus "a meeting together; sexual union," past participle of coire, from com- "together" (see co-) + ire "come, go," (see ion). In Middle English as coite (early 15c.). Used in English in general senses of "meeting, uniting," and also of magnetic force, planetary conjunction, etc., before sexual sense came to predominate.
Online Etymology Dictionary, © 2010 Douglas Harper
coitus (kō ′ĭ-təs, kō-ē ′-) Sexual union between a male and a female involving insertion of the penis into the vagina. coition copulation Related forms co ′i•tal adj.
The American Heritage® Stedman's Medical Dictionary
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