promise vs prophesy

promise is a noun but prophesy is not a noun.

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

As verbs, prophesy is a hyponym of promise; that is, prophesy is a word with a more specific, narrower meaning than promise:

Other hyponyms of promise include read, outguess, second-guess, augur, bet, wager, calculate, forecast, vaticinate.

promise (noun)	prophesy (noun)
grounds for feeling hopeful about the future
a verbal commitment by one person to another agreeing to do (or not to do) something in the future

promise (verb)	prophesy (verb)
make a promise or commitment	predict or reveal through, or as if through, divine inspiration
promise to undertake or give	deliver a sermon
make a prediction about; tell in advance
give grounds for expectations