Incurvating

from The Collaborative International Dictionary of English v.0.48

Incurvate \In*cur"vate\, v. t. [imp. & p. p. {Incurvated}; p.
   pr. & vb. n. {Incurvating}.]
   To turn from a straight line or course; to bend; to crook.
   --Cheyne.
   [1913 Webster]