Source : Webster's Revised Unabridged Dictionary (1913)

Canting \Cant"ing\, a.
   Speaking in a whining tone of voice; using technical or
   religious terms affectedly; affectedly pious; as, a canting
   rogue; a canting tone. -- {Cant"ing*ly}, adv. --
   {Cant"ing*ness}, n.

   {Canting arms}, {Canting heraldry} (Her.), bearings in the
      nature of a rebus alluding to the name of the bearer.
      Thus, the Castletons bear three castles, and Pope Adrian
      IV. (Nicholas Breakspeare) bore a broken spear.