Source : Webster's Revised Unabridged Dictionary (1913)

Borrow \Bor"row\, n.
   1. Something deposited as security; a pledge; a surety; a
      hostage. [Obs.]

            Ye may retain as borrows my two priests. --Sir W.
                                                  Scott.

   2. The act of borrowing. [Obs.]

            Of your royal presence I'll adventure The borrow of
            a week.                               --Shak.

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.

   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.

   3. To copy or imitate; to adopt; as, to borrow the style,
      manner, or opinions of another.

            Rites borrowed from the ancients.     --Macaulay.

            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.

   4. To feign or counterfeit. ``Borrowed hair.'' --Spenser.

            The borrowed majesty of England.      --Shak.

   5. To receive; to take; to derive.

            Any drop thou borrowedst from thy mother. --Shak.

   {To borrow trouble}, to be needlessly troubled; to be
      overapprehensive.

Source : WordNet®

borrow
     v 1: get temporarily; "May I borrow your lawn mower?" [ant: {lend}]
     2: take up and practice as one's own [syn: {adopt}, {take over},
         {take up}]