资料来源 : pyDict

防止,防避,防护

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Forfend \For*fend"\, v. t. [Pref. for- + fend. See {Forewend}.]
   To prohibit; to forbid; to avert. [Archaic]

         Which peril heaven forefend!             --Shak.

   Note: This is etymologically the preferable spelling.