Fornicate

глагол [устаревшее] вступать во внебрачную связь, прелюбодействовать

Большой англо-русский словарь

Fornicate

verb (-cated; -cating) Etymology: Late Latin fornicatus, past participle of fornicare to have intercourse with prostitutes, from Latin fornic-, fornix arch, vault, brothel intransitive verb to commit fornication transitive verb to commit fornication with • fornicator noun

Merriam-Webster's Collegiate Dictionary