What is the Latin word for copulate?

The usual Latin words for “copulate” are coeō, ineō, comprimō; also marītō. The right choice depends on the sense; see the distinctions below.

English → Latin

“copulate” in Latin

coeōto assemble, meet, come together; to encounter, come up against; to copulate, have sex ineōto enter, go into; to begin; to have sexual intercourse comprimōto compress (squeeze together); to restrain, contain, repress or curb, hinder, check; to withhold or conceal evidences o marītōto marry, wed (in the sense of "give a husband to someone", "give someone in marriage"); to be coupled; to have a mate;

The English word copulate itself goes back to Latin cōpula, through cōpulātus.

Riddle & Arnold A Copious and Critical English–Latin Lexicon, 1864

copulate

Couple, Vid:

Sexually (of animals); coire (absolutely, or with cum): inire: comprimere (coire and comprimere, also of men; comprimere, of the peacock, Col.): iniri: maritari: marem pati (of the female).

Quick answer

What is the Latin word for copulate?: The usual Latin words for “copulate” are coeō, ineō, comprimō; also marītō. The right choice depends on the sense; see the distinctions below.

Entry from J. E. Riddle & T. K. Arnold, A Copious and Critical English–Latin Lexicon (rev. C. Anthon, New York: Harper, 1864), digitised by Fergus J. P. Walsh, CC BY-SA 4.0; Latin markup adapted by latindictionary.co.