relinquishing vs ceding

relinquishing and ceding both are nouns.

Word	Noun	Adjective	Verb	Adverb
relinquishing	Yes	No	No	No
ceding	Yes	No	No	No

As nouns, ceding is a hyponym of relinquishing; that is, ceding is a word with a more specific, narrower meaning than relinquishing:

Other hyponyms of relinquishing include cession, handover, discharge, release, waiver.

relinquishing (noun)	ceding (noun)
the act of giving up and abandoning a struggle or task etc.	the act of ceding
a verbal act of renouncing a claim or right or position etc.