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1640s, from Middle French prostate, from Medieval Latin prostata "the prostate," from Greek prostates (aden) "prostate (gland)," from prostates "leader, ruler, guardian; one standing in front," from proistanai "set before," from pro- "before" (see pro-) + histanai "cause to stand" from PIE root *sta- "to stand" (see stet). So called from its position at the base of the bladder.
prostate pros·tate (prŏs'tāt')
The prostate gland. adj.
Of or relating to the prostate gland.