The Collaborative International Dictionary of English v.0.48:

Tint \Tint\, n. [For older tinct, fr. L. tinctus, p. p. of
   tingere to dye: cf. F. teinte, teint, It. tinta, tinto. See
   Tinge, and cf. Taint to stain, a stain, Tent a kind of
   wine, Tinto.]
   A slight coloring. Specifically:
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   (a) A pale or faint tinge of any color.
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             Or blend in beauteous tints the colored mass.
                                                  --Pope.
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             Their vigor sickens, and their tints decline.
                                                  --Harte.
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   (b) A color considered with reference to other very similar
       colors; as, red and blue are different colors, but two
       shades of scarlet are different tints.
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   (c) (Engraving) A shaded effect produced by the juxtaposition
       of many fine parallel lines.
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   Tint tool (Eng.), a species of graver used for cutting the
      parallel lines which produce tints in engraving.
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