FORN'ICATE, FORN'ICATED, adjective [Latin fornicatus, from fornix, an arch.] Arched; vaulted like an oven or furnace. FORN'ICATE, verb intransitive [Latin fornicor, from fornix, a brothel.] To commit lewdness, as an unmarried man or woman, or as a married man with an unmarried woman. If a brahman fornicate with a Nayr woman, he shall not thereby lose his cast.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI