The Collaborative International Dictionary of English v.0.48:

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.]
   [1913 Webster]

         The fierce and eager hawks, down thrilling from the
         skies,
         Make sundry canceliers ere they the fowl can reach.
                                                  --Drayton.
   [1913 Webster]