Webster’s Revised Unabridged Dictionary · 1913
Prognosticate
Prog·nos′ti·cate (·tĭ·kāt), v. t. [imp. & p. p. Prognosticated; p. pr. & vb. n. Prognosticating.] [See Prognostic.] To indicate as future; to foretell from signs or symptoms; to prophesy; to foreshow; to predict; as, to prognosticate evil. Burke.
I neither will nor can prognosticate To the young gaping heir his father's fate. Dryden.
Syn. — To foreshow; foretoken; betoken; forebode; presage; predict; prophesy.