prognosticate vs forebode

prognosticate and forebode both are verbs.

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

As verbs, prognosticate and forebode are synonyms defined as:

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

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