originate vs go back

originate and go back both are verbs.

Word	Noun	Adjective	Verb	Adverb
originate	No	No	Yes	No
go back	No	No	Yes	No

As verbs, go back is a hyponym of originate; that is, go back is a word with a more specific, narrower meaning than originate:

Other hyponyms of originate include initiate, lead up, set, date back, date from.

originate (verb)	go back (verb)
bring into being	regain a former condition after a financial loss
come into existence; take on form or shape	return in thought or speech to something
begin a trip at a certain point, as of a plane, train, bus, etc.	belong to an earlier time