The Collaborative International Dictionary of English v.0.48:

Miser \Mi"ser\ (m[imac]"z[~e]r), n. [L. miser wretched,
   miserable; cf. Gr. mi^sos hate, misei^n to hate: cf. It. &
   Sp. misero wretched, avaricious.]
   [1913 Webster]
   1. A wretched person; a person afflicted by any great
      misfortune. [Obs.] --Spenser.
      [1913 Webster]

            The woeful words of a miser now despairing. --Sir P.
                                                  Sidney.
      [1913 Webster]

   2. A despicable person; a wretch. [Obs.] --Shak.
      [1913 Webster]

   3. A covetous, grasping, mean person; esp., one having
      wealth, who lives miserably for the sake of saving and
      increasing his hoard.
      [1913 Webster]

            As some lone miser, visiting his store,
            Bends at his treasure, counts, recounts it o'er.
                                                  --Goldsmith.
      [1913 Webster]

   4. A stingy person; one very reluctant to spend money.
      [PJC]

   5. A kind of large earth auger. --Knight.
      [1913 Webster]

WordNet (r) 3.0 (2006):

miser
    n 1: a stingy hoarder of money and possessions (often living
         miserably)