The Collaborative International Dictionary of English v.0.48:

Ingrain \In"grain`\, n.
   An ingrain fabric, as a carpet.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Ingrain \In"grain`\, v. t. [imp. & p. p. Ingrained; p. pr. &
   vb. n. Ingraining.] [Written also engrain.]
   [1913 Webster]
   1. To dye with or in grain or kermes.
      [1913 Webster]

   2. To dye in the grain, or before manufacture.
      [1913 Webster]

   3. To work into the natural texture or into the mental or
      moral constitution of; to stain; to saturate; to imbue; to
      infix deeply.
      [1913 Webster]

            Our fields ingrained with blood.      --Daniel.
      [1913 Webster]

            Cruelty and jealousy seem to be ingrained in a man
            who has these vices at all.           --Helps.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Ingrain \In"grain`\ (?; 277), a. [Pref. in- in + grain kermes.
   See Engrain, Grain.]
   [1913 Webster]
   1. Dyed with grain, or kermes. [Obs.]
      [1913 Webster]

   2. Dyed before manufacture, -- said of the material of a
      textile fabric; hence, in general, thoroughly inwrought;
      forming an essential part of the substance.
      [1913 Webster]

   Ingrain carpet, a double or two-ply carpet.

   Triple ingrain carpet, a three-ply carpet.
      [1913 Webster]

WordNet (r) 3.0 (2006):

ingrain
    v 1: thoroughly work in; "His hands were grained with dirt"
         [syn: ingrain, grain]
    2: produce or try to produce a vivid impression of; "Mother
       tried to ingrain respect for our elders in us" [syn:
       impress, ingrain, instill]

Moby Thesaurus II by Grady Ward, 1.0:

92 Moby Thesaurus words for "ingrain":
   apply paint, bed, bedaub, bedizen, begild, besmear, brush on paint,
   calcimine, coat, color, complexion, confirm, cover, dab, daub,
   deep-dye, define, dip, distemper, double-dye, dye, embed, emblazon,
   enamel, engild, engraft, engrave, entrench, establish, etch, face,
   fast-dye, fix, found, fresco, gild, glaze, gloss, grain, grave,
   ground, hue, illuminate, imbue, impact, implant, impress, imprint,
   incise, infix, inoculate, inscribe, invest, jam, japan, lacquer,
   lay on color, leaven, lodge, pack, paint, parget, pigment, plant,
   prime, print, root, seat, set, set in, settle, shade, shadow,
   shellac, slop on paint, smear, stain, stamp, steep, stereotype,
   stipple, suffuse, tinct, tincture, tinge, tint, tone, undercoat,
   varnish, wash, wedge, whitewash