prey vs predate

prey is a noun but predate is not a noun.

Word	Noun	Adjective	Verb	Adverb
prey	Yes	No	Yes	No
predate	No	No	Yes	No

As verbs, prey and predate are synonyms defined as:

Other synonyms of prey include raven.

prey (noun)	predate (noun)
animal hunted or caught for food
a person who is the aim of an attack (especially a victim of ridicule or exploitation) by some hostile person or influence

prey (verb)	predate (verb)
profit from in an exploitatory manner	establish something as being earlier relative to something else
prey on or hunt for	be earlier in time; go back further
	come before
	prey on or hunt for