forego vs antedate

forego and antedate both are verbs.

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

As verbs, forego and antedate are synonyms defined as:

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

forego (verb)	antedate (verb)
lose (something) or lose the right to (something) by some error, offense, or crime	establish something as being earlier relative to something else
do without or cease to hold or adhere to	be earlier in time; go back further
be earlier in time; go back further