prewarn

• a word derived from warn.
  warn

  verb (used with object)

  to give notice, advice, or intimation to (a person, group, etc.) of danger, impending evil, possible harm, or anything else unfavorable.

Related Words

• address
• advise
• alert
• caution
• hint
• inform
• instruct
• notify
• order
• predict
• prepare
• prompt
• recommend
• remind
• signal
• suggest
• summon
• tell
• threaten
• urge