Source : Webster's Revised Unabridged Dictionary (1913)

Grope \Grope\, v. t.
   1. To search out by feeling in the dark; as, we groped our
      way at midnight.

   2. To examine; to test; to sound. [Obs.] --Chaucer.

            Felix gropeth him, thinking to have a bribe.
                                                  --Genevan
                                                  Test. (Acts
                                                  xxiv. ).

Grope \Grope\ (gr[=o]p), v. i. [imp. & p. p. {Groped}
   (gr[=o]pt); p. pr. & vb. n. {Groping}.] [OE. gropen, gropien,
   grapien, AS. gr[=a]pian to touch, grope, fr. gr[imac]pan to
   gripe. See {Gripe}.]
   1. To feel with or use the hands; to handle. [Obs.]

   2. To search or attempt to find something in the dark, or, as
      a blind person, by feeling; to move about hesitatingly, as
      in darkness or obscurity; to feel one's way, as with the
      hands, when one can not see.

            We grope for the wall like the blind. --Is. lix. 10.

            To grope a little longer among the miseries and
            sensualities ot a worldly life.       --Buckminster.

Source : WordNet®

grope
     n : the act of groping; and instance of groping
     v 1: feel about uncertainly or blindly; "She groped for her
          glasses in the darkness of the bedroom" [syn: {fumble}]
     2: search blindly or uncertainly; "His mind groped to make the
        connection"
     3: fondle for sexual pleasure; "He made some sexual advances at
        the woman in his office and groped her repeatedly"