The Collaborative International Dictionary of English v.0.48:

Feeble \Fee"ble\ (f[=e]"b'l), a. [Compar. Feebler (-bl[~e]r);
   superl. Feeblest (-bl[e^]st).] [OE. feble, OF. feble,
   flebe, floibe, floible, foible, F. faible, L. flebilis to be
   wept over, lamentable, wretched, fr. flere to weep. Cf.
   Foible.]
   1. Deficient in physical strength; weak; infirm; debilitated.
      [1913 Webster]

            Carried all the feeble of them upon asses. --2
                                                  Chron. xxviii.
                                                  15.
      [1913 Webster]

   2. Wanting force, vigor, or efficiency in action or
      expression; not full, loud, bright, strong, rapid, etc.;
      faint; as, a feeble color; feeble motion. "A lady's feeble
      voice." --Shak.
      [1913 Webster]