preyupon 1) охотиться, ловить; The lions in this area prey on deer and other wild animals.
prey upon
preyupon 2) обманывать, вымогать; He lives by preying on his relations.
prey upon
preyupon 3) грабить; Bands of robbers living in the hills would prey on any traveller.
prey upon
preyupon 4) терзать, мучить; his misfortune preys on his mind - несчастье гнетет его; His crime preyed on his mind until he gave himself up to the police.