promise vs renege

promise and renege both are nouns.

Word	Noun	Adjective	Verb	Adverb
promise	Yes	No	Yes	No
renege	Yes	No	Yes	No

promise (noun)	renege (noun)
grounds for feeling hopeful about the future	the mistake of not following suit when able to do so
a verbal commitment by one person to another agreeing to do (or not to do) something in the future

promise (verb)	renege (verb)
make a promise or commitment	fail to fulfill a promise or obligation
promise to undertake or give
make a prediction about; tell in advance
give grounds for expectations