foreshadow vs prognosticate

foreshadow and prognosticate both are verbs.

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

As verbs, foreshadow and prognosticate are synonyms defined as:

Other synonyms of foreshadow include augur, auspicate, betoken, bode, forecast, foretell, omen, portend, predict, prefigure, presage.

foreshadow (verb)	prognosticate (verb)
indicate, as with a sign or an omen	make a prediction about; tell in advance
	indicate, as with a sign or an omen