Source : Webster's Revised Unabridged Dictionary (1913)

Shrivel \Shriv"el\, v. i. [imp. & p. p. {Shriveled}or
   {Shrivelled}; p. pr. & vb. n. {Shriveling} or {Shrivelling}.]
   [Probably akin to shrimp, shrink; cf. dial. AS. screpa to
   pine away, Norw. skrypa to waste, skryp, skryv, transitory,
   frail, Sw. skr["o]pling feeble, Dan. skr["o]belig, Icel.
   skrj?pr brittle, frail.]
   To draw, or be drawn, into wrinkles; to shrink, and form
   corrugations; as, a leaf shriveles in the hot sun; the skin
   shrivels with age; -- often with up.

Source : WordNet®

shrivel
     v 1: wither, especially with a loss of moisture; "The fruit dried
          and shriveled" [syn: {shrivel up}, {shrink}, {wither}]
     2: decrease in size, range, or extent; "His earnings shrank";
        "My courage shrivelled when I saw the task before me"
        [syn: {shrink}]
     [also: {shrivelling}, {shrivelled}]

shrivelled
     adj 1: (used especially of vegetation) having lost all moisture;
            "dried-up grass"; "the desert was edged with sere
            vegetation"; "shriveled leaves on the unwatered
            seedlings"; "withered vines" [syn: {dried-up}, {sere},
             {sear}, {shriveled}, {withered}]
     2: lean and wrinkled by shrinkage as from age or illness; "the
        old woman's shriveled skin"; "he looked shriveled and
        ill"; "a shrunken old man"; "a lanky scarecrow of a man
        with withered face and lantern jaws"-W.F.Starkie; "he did
        well despite his withered arm"; "a wizened little man with
        frizzy gray hair" [syn: {shriveled}, {shrunken}, {withered},
         {wizen}, {wizened}]
     3: reduced in efficacy or vitality or intensity; "our shriveled
        receipts during the storm"; "as the project wore on she
        found her enthusiasm shriveled"; "the dollar's shrunken
        buying power" [syn: {shriveled}, {shrunken}]

shrivelled
     See {shrivel}