venom: [13] Venom comes via Old French venim from Vulgar Latin *venīmen, an alteration of Latin venēnum ‘drug, poison’. It has been speculated that this was derived ultimately from venus ‘love’ (source of English venerate, venereal, etc), in which case its ancestral sense would presumably have been ‘love-potion’. [venom etymology, venom origin, 英语词源]