The Collaborative International Dictionary of English v.0.48:

Borrow \Bor"row\, v. t. [imp. & p. p. Borrowed; p. pr. & vb.
   n. Borrowing.] [OE. borwen, AS. borgian, fr. borg, borh,
   pledge; akin to D. borg, G. borg; prob. fr. root of AS.
   beorgan to protect. ?95. See 1st Borough.]
   1. To receive from another as a loan, with the implied or
      expressed intention of returning the identical article or
      its equivalent in kind; -- the opposite of lend.
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   2. (Arith.) To take (one or more) from the next higher
      denomination in order to add it to the next lower; -- a
      term of subtraction when the figure of the subtrahend is
      larger than the corresponding one of the minuend.
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   3. To copy or imitate; to adopt; as, to borrow the style,
      manner, or opinions of another.
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            Rites borrowed from the ancients.     --Macaulay.
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            It is not hard for any man, who hath a Bible in his
            hands, to borrow good words and holy sayings in
            abundance; but to make them his own is a work of
            grace only from above.                --Milton.
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   4. To feign or counterfeit. "Borrowed hair." --Spenser.
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            The borrowed majesty of England.      --Shak.
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   5. To receive; to take; to derive.
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            Any drop thou borrowedst from thy mother. --Shak.
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   To borrow trouble, to be needlessly troubled; to be
      overapprehensive.
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