Webster’s Revised Unabridged Dictionary · 1913
Copulate
Cop′u·late (kŏp′ū·lāt), a. [L. copulatus, p. p. of copulare to couple, fr. copula. See Copula.] 1. Joined; associated; coupled. [Obs.] Bacon.
2. (Gram.) Joining subject and predicate; copulative. F. A. March.
Cop′u·late (·lāt), v. i. [imp. & p. p. Copulated; p. pr. & vb. n. Copulating.] To unite in sexual intercourse; to come together in the act of generation.