"pursuit of sexual pleasure," mid-15c., from Medieval Latin veneria "sexual intercourse," from Latin venus (genitive veneris) "sexual love, sexual desire" (see Venus). In earlier use it may have been felt as a play on now obsolete homonym venery (n.2) "practice or sport of hunting, the chase." Related: Venereous.
venery (n.2)
"hunting, the sports of the chase," early 14c., from Old French venerie, from Medieval Latin venaria "beasts of the chase, game," from Latin venari "to hunt, pursue" (see venison).