The Collaborative International Dictionary of English v.0.48:

Nimble \Nim"ble\ (n[i^]m"b'l), a. [Compar. Nimbler
   (n[i^]m"bl[~e]r); superl. Nimblest (n[i^]m"bl[e^]st).] [OE.
   nimel, prob. orig., quick at seizing, fr. nimen to take, AS.
   niman; akin to D. nemen, G. nehmen, OHG. neman, Icel. nema,
   Goth. nima, and prob. to Gr. ne`mein to distribute. [root] 7.
   Cf. Nomand, Numb.]
   Light and quick in motion; moving with ease and celerity;
   lively; swift.
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         Through the mid seas the nimble pinnace sails. --Pope.
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   Note: Nimble is sometimes used in the formation of
         self-explaining compounds; as, nimble-footed,
         nimble-pinioned, nimble-winged, etc.
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   Nimble Will (Bot.), a slender, branching, American grass
      (Muhlenbergia diffusa), of some repute for grazing
      purposes in the Mississippi valley.
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   Syn: Agile; quick; active; brisk; lively; prompt.
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