Source : Webster's Revised Unabridged Dictionary (1913)

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

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

   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.

   3. To modulate, as the voice.

Source : WordNet®

inflect
     v 1: change the form of a word in accordance as required by the
          grammatical rules of the language
     2: of one's speech, varying the pitch [syn: {tone}, {modulate}]