Source : Webster's Revised Unabridged Dictionary (1913)

Cautel \Cau"tel\, n. [F. caut[`e]le, L. cautela, fr. cavere to
   be on one's guard, to take care.]
   1. Caution; prudence; wariness. [Obs.] --Fulke.

   2. Craft; deceit; falseness. [Obs.] --Shak.