The Collaborative International Dictionary of English v.0.48:

Inflect \In*flect"\, v. t. [imp. & p. p. Inflected; p. pr. &
   vb. n. Inflecting.] [L. inflectere, inflexum; pref. in- in
   + flectere to bend. See Flexible, and cf. Inflex.]
   1. To turn from a direct line or course; to bend; to incline,
      to deflect; to curve; to bow.
      [1913 Webster]

            Are they [the rays of the sun] not reflected,
            refracted, and inflected by one and the same
            principle ?                           --Sir I.
                                                  Newton.
      [1913 Webster]

   2. (Gram.) To vary, as a noun or a verb in its terminations;
      to decline, as a noun or adjective, or to conjugate, as a
      verb.
      [1913 Webster]

   3. To modulate, as the voice.
      [1913 Webster]