Verb
prey upon (third-person singular simple present preys upon, present participle preying upon, simple past and past participle preyed upon)
Synonym of prey on
We live at home, quiet, confined, and our feelings prey upon us. Jane Austen
Propositions prey upon and are grounded upon one another just like living forms. Samuel Butler (novelist)
Animals that kill usually have far more social relationships than those they prey upon. Gilles Dauve
If most people cast their lot with the latter, then evil will prey forever upon humankind, as wolves and tigers prey upon lambs. Liu Xiaobo
Cultivate friends who pray for you, not prey upon you. American Proverb
Among the insect prey taken one of the more important types are caterpillars; along with cuckoos, trogons are one of the few birds groups to regularly prey upon them. Source: Internet