The Collaborative International Dictionary of English v.0.48:

Mantle \Man"tle\, v. t. [imp. & p. p. Mantled; p. pr. & vb. n.
   Mantling.]
   To cover or envelop, as with a mantle; to cloak; to hide; to
   disguise. --Shak.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

mantled \man"tled\ adj.
   Covered with or as if with clothes or a wrap or cloak.

   Syn: cloaked, clothed, draped, wrapped.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

mantled
    adj 1: covered with or as if with clothes or a wrap or cloak;
           "leaf-clothed trees"; "fog-cloaked meadows"; "a beam
           draped with cobwebs"; "cloud-wrapped peaks" [syn:
           cloaked, clothed, draped, mantled, wrapped]

Moby Thesaurus II by Grady Ward, 1.0:

78 Moby Thesaurus words for "mantled":
   appareled, armored, arrayed, attired, bedecked, breeched, capped,
   cased, ceiled, chausse, clad, cloaked, clothed, clouded, coated,
   coifed, coped, costumed, covered, covert, cowled, curtained,
   decked, dight, disguised, dressed, eclipsed, encapsulated,
   encapsuled, encased, endued, enveloped, enwrapped, filmed, floored,
   garbed, garmented, gowned, habilimented, habited, hooded, housed,
   invested, liveried, loricate, loricated, masked, muffled, obscured,
   occulted, packaged, pantalooned, paved, raimented, rigged out,
   robed, roofed-in, screened, scummed, sheathed, shelled, shielded,
   shod, shoed, shrouded, swathed, tented, tired, togged, tricked out,
   trousered, under cover, veiled, vested, vestmented, walled,
   walled-in, wrapped