post-coital

The word is a modern scientific compound formed from classical elements. The prefix 'post-' is directly from Latin post, meaning "after in time or place," a stable preposition in the Indo-European family. The core component, 'coital', derives from Latin coitus, the past participle of coire ("to come together"), itself from co- (a form of com-, "together") and ire ("to go"). Thus, the literal sense is "a going together," which specialized to refer to sexual union. The adjective 'coital' was formed by adding the relational suffix '-al'. Therefore, 'post-coital' logically and transparently describes anything pertaining to the period following sexual intercourse, maintaining a direct link between its morphological parts and its clinical, temporal meaning.

Structure: post (after) + coital (relating to sexual intercourse) - post: Latin origin, meaning "after, behind". Functions as a prefix indicating time or sequence. - coital: Derived from the noun 'coitus' (Latin: coitus, meaning "a coming together, sexual union") + the adjectival suffix '-al'. The '-al' suffix is from Latin -alis, forming adjectives meaning "of, relating to, or characterized by".