Forewarn \Fore*warn"\ (f[=o]r*w[add]rn"), v. t. [imp. & p. p. {Forewarned} (f[=o]r*w[add]rnd"); p. pr. & vb. n. {Forewarning}.] To warn beforehand; to give previous warning, admonition, information, or notice to; to caution in advance.
We were forewarned of your coming. --Shak.
But it does forewarn of other impending closures, he said.
"Pan Am knew about it and did nothing to forewarn passengers and give them an option until the last minute," passenger Marilyn Harding told the newspaper in a telephone interview from Paris.