forebode vs prognosticate

forebode and prognosticate both are verbs.

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

As verbs, forebode and prognosticate are synonyms defined as:

Other synonyms of forebode include anticipate, call, foretell, predict, promise.

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