Source : Webster's Revised Unabridged Dictionary (1913)

Cancelier \Can`cel*ier"\, Canceleer \Can"cel*eer\, n. (Falconry)
   The turn of a hawk upon the wing to recover herself, when she
   misses her aim in the stoop. [Obs.]

         The fierce and eager hawks, down thrilling from the
         skies, Make sundry canceliers ere they the fowl can
         reach.                                   --Drayton.