prognostication vs presage

prognostication and presage both are nouns.

Word	Noun	Adjective	Verb	Adverb
prognostication	Yes	No	No	No
presage	Yes	No	Yes	No

As nouns, prognostication and presage are synonyms defined as:

Other synonyms of prognostication include omen, portent, prodigy, prognostic.

prognostication (noun)	presage (noun)
knowledge of the future (usually said to be obtained from a divine source)	a sign of something about to happen
a statement made about the future	a foreboding about what is about to happen
a sign of something about to happen

prognostication (verb)	presage (verb)
	indicate, as with a sign or an omen