Source : Webster's Revised Unabridged Dictionary (1913)

Engrain \En*grain"\, v. t. [imp. & p. p. {Engrained}; p. pr. &
   vb. n. {Engraining}.] [Pref. en- + grain. Cf. {Ingrain}.]
   1. To dye in grain, or of a fast color. See {Ingrain}.

            Leaves engrained in lusty green.      --Spenser.

   2. To incorporate with the grain or texture of anything; to
      infuse deeply. See {Ingrain}.

            The stain hath become engrained by time. --Sir W.
                                                  Scott.

   3. To color in imitation of the grain of wood; to grain. See
      {Grain}, v. t., 1.