PROGNOS'TICATE, verb transitive [from prognostic.] 1. To foreshow; to indicate a future event by present signs. A clear sky at sunset prognosticates a fair day. 2. To foretell by means of present signs; to predict. I neither will nor can prognosticate To the young gaping heir his father's fate.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI