D defs.my
Entry 1 sense Webster, 1913

Forewarn

/(fōr*wa̤rn")/ · Fore·warn · IPA /fɔrwˈɔrn/
01 v. t. To warn beforehand; to give previous warning, admonition, information, or notice to; to caution in advance.
imp. & p. p. Forewarned; p. pr. & vb. n. Forewarning
  1. 1.
    To warn beforehand; to give previous warning, admonition, information, or notice to; to caution in advance.
    “We were forewarned of your coming.” Shak.