The Collaborative International Dictionary of English v.0.48:

Penurious \Pe*nu"ri*ous\, a. [From Penury.]
   1. Excessively sparing in the use of money; sordid; stingy;
      miserly. "A penurious niggard of his wealth." --Milton.
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   2. Not bountiful or liberal; scanty.
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            Here creeps along a poor, penurious stream. --C.
                                                  Pitt.
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   3. Destitute of money; suffering extreme want. [Obs.] "My
      penurious band." --Shak.
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   Syn: Avaricious; covetous; parsimonious; miserly; niggardly;
        stingy. See Avaricious.
        [1913 Webster] --Pe*nu"ri*ous*ly, adv. --
        Pe*nu"ri*ous*ness, n.
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WordNet (r) 3.0 (2006):

penuriously
    adv 1: in a penurious manner; "they lived penuriously"