wager vs prognosticate

wager is a noun but prognosticate is not a noun.

Word	Noun	Adjective	Verb	Adverb
wager	Yes	No	Yes	No
prognosticate	No	No	Yes	No

As verbs, prognosticate is a hypernym of wager; that is, prognosticate is a word with a broader meaning than wager:

Other hypernyms of wager include anticipate, call, forebode, foretell, predict, promise.

wager (noun)	prognosticate (noun)
the act of gambling
the money risked on a gamble

wager (verb)	prognosticate (verb)
maintain with or as if with a bet	make a prediction about; tell in advance
stake on the outcome of an issue	indicate, as with a sign or an omen