The Collaborative International Dictionary of English v.0.48:

Variegate \Va"ri*e*gate\, v. t. [imp. & p. p. Variegated; p.
   pr. & vb. n. Variegating.] [L. variegatus, p. p. of
   variegare to variegate; varius various + agere to move, make.
   See Various, and Agent.]
   To diversify in external appearance; to mark with different
   colors; to dapple; to streak; as, to variegate a floor with
   marble of different colors.
   [1913 Webster]

         The shells are filled with a white spar, which
         variegates and adds to the beauty of the stone.
                                                  --Woodward.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Variegated \Va"ri*e*ga`ted\, a.
   Having marks or patches of different colors; as, variegated
   leaves, or flowers.
   [1913 Webster]

         Ladies like variegated tulips show.      --Pope.
   [1913 Webster]

WordNet (r) 3.0 (2006):

variegated
    adj 1: having a variety of colors [syn: varicolored,
           varicoloured, variegated]

Moby Thesaurus II by Grady Ward, 1.0:

165 Moby Thesaurus words for "variegated":
   assorted, at odds, at variance, bicolor, bicolored, brindled,
   calico, capricious, changeable, changing, checked, checkered,
   choppy, chromatic, cold, colorful, colorific, coloring, colory,
   contrary, contrasted, contrasting, cool, crazy, daedal, dappled,
   departing, deviating, deviative, deviatory, dichromatic, different,
   differentiated, differing, disaccordant, disagreeing, discolor,
   discordant, discrepant, discrete, discriminated, disjoined,
   disorderly, disparate, dissimilar, dissonant, distinct,
   distinguished, divaricate, divergent, diverging, divers,
   divers-colored, diverse, diversified, diversiform, erose, erratic,
   flecked, freaked, glowing, harlequin, harmonious, heterogeneous,
   impulsive, in disagreement, inaccordant, incompatible, incongruous,
   inconsistent, inconsonant, inconstant, inharmonious,
   irreconcilable, irregular, jagged, jerky, kaleidoscopic, many,
   many-colored, marbled, matching, medley, mercurial, monochromatic,
   monochrome, monochromic, motley, mottle, mottled, multicolor,
   multicolored, multicolorous, multifarious, multihued, mutable,
   nacreous, nonconformist, nonstandard, nonuniform, opalescent,
   opaline, parti-color, parti-colored, piebald, pied, pigmentary,
   pinto, pluralistic, poles apart, poles asunder, polychromatic,
   polychrome, polychromic, prismal, prismatic, ragged, rainbow,
   rough, separate, separated, several, shot, shot through, skewbald,
   spasmodic, spattered, speckled, spectral, sporadic, spotted,
   stippled, streaked, thunder and lightning, tinctorial, tingent,
   toning, trichromatic, trichromic, tricolor, tricolored, two-tone,
   unconformable, unequable, unequal, uneven, unlike, unorthodox,
   unstable, unsteady, unsystematic, ununiform, variable, variant,
   varicolored, varied, variform, various, varying, versicolor,
   versicolored, warm, wavering, widely apart, worlds apart