The Collaborative International Dictionary of English v.0.48:

Notch \Notch\, v. t. [imp. & p. p. Notched (n[o^]cht); p. pr.
   & vb. n. Notching.]
   1. To cut or make notches in; to indent; also, to score by
      notches; as, to notch a stick.
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   2. To fit the notch of (an arrow) to the string.
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            God is all sufferance; here he doth show
            No arrow notched, only a stringless bow. --Herrick.
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The Collaborative International Dictionary of English v.0.48:

Notching \Notch"ing\, n.
   1. The act of making notches; the act of cutting into small
      hollows.
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   2. The small hollow, or hollows, cut; a notch or notches.
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   3. (Carp.) A method of joining timbers, scantling, etc., by
      notching them, as at the ends, and overlapping or
      interlocking the notched portions.
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   4. (Engin.) A method of excavating, as in a bank, by a series
      of cuttings side by side. See also Gulleting.
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