go back vs ascend

go back and ascend both are verbs.

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

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

go back (verb)	ascend (verb)
regain a former condition after a financial loss	slope upwards
return in thought or speech to something	travel up
belong to an earlier time	come up, of celestial bodies
	go along towards (a river's) source
	move to a better position in life or to a better job
	appear to be moving upward, as by means of tendrils
	become king or queen
	go back in order of genealogical succession