compromise vs concur

compromise is a noun but concur is not a noun.

Word	Noun	Adjective	Verb	Adverb
compromise	Yes	No	Yes	No
concur	No	No	Yes	No

compromise (noun)	concur (noun)
a middle way between two extremes
an accommodation in which both sides make concessions

compromise (verb)	concur (verb)
settle by concession	happen simultaneously
make a compromise; arrive at a compromise	be in accord; be in agreement
expose or make liable to danger, suspicion, or disrepute