antedate vs predate

antedate and predate both are verbs.

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

As verbs, antedate and predate are synonyms defined as:

antedate and predate: establish something as being earlier relative to something else

Other synonyms of antedate include foredate.

As verbs, antedate and predate are synonyms defined as:

Other synonyms of antedate include antecede, forego, forgo, precede.

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