forewarn

verb

Etymology: Early 14th century, from Middle English *forewarnen (suggested by Middle English forewarned, forewarning, forewarner, etc.), from Old English forewarnian (“to take warning beforehand; forewarn”), from Proto-Germanic *furawarnōną (“to forewarn”), equivalent to fore- + warn. Cognate with German vorwarnen (“to forewarn”), Swedish förvarna (“to forewarn”).

1. To warn in advance.

   “And ſure, although it was invented to eaſe his mynde of griefe, there be a number of caveats therein to forewarne other young gentlemen to foreſtand with good government their folowing yl fortunes; […]”

   ““I came down like a wolf on the fold, didn’t I ? Why didn’t I telephone ? Strategy, my dear boy, strategy. This is a surprise attack, and I’d no wish that the garrison, forewarned, should escape.[…]””