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.
"castrate, render (a male) incapable of generation," 1893, in reference to dogs, from neuter (adj.). Related: Neutered; neutering.
"American born of Japanese parents," from Japanese ni- "second" + sei "generation." Use of the word was limited to U.S. West Coast until c. 1942.
from Latinized form of Greek Kronos, youngest of the first generation of Titans, and their leader; a name of uncertain origin but probably not related to Khronos, personification of time, except in folk-etymology.