To prognosticate.
Foreshowing; indicating something in the future by signs or symptoms: as, the prognostic indications of a disease.
noun.
That which prognosticates or foretells; a sign by which a future event may be known or foreshown; an omen; a token.
noun.
A prediction; a foretelling.
noun.
Synonyms Sign, Presage, etc. See omen, and foretell, v. i.