procreation (n.)

late 14c., procreacioun, "process of begetting offspring, generation and production of young," from Old French procreacion (14c., Modern French prócreation) and directly from Latin procreationem (nominative procreatio) "a begetting, generation," noun of action from past-participle stem of procreare "bring forth" (offspring), "beget, generate, produce," from pro "forth" (see pro-) + creare "create" (from PIE root *ker- (2) "to grow"). Spelling with -t- in English begins mid-15c.