The Collaborative International Dictionary of English v.0.48:

Bask \Bask\ (b[.a]sk), v. i. [imp. & p. p. Basked (b[.a]skt);
   p. pr. & vb. n. Basking.] [OScand. ba[eth]ask to bathe
   one's self, or perh. bakask to bake one's self, sk being
   reflexive. See Bath, n., Bake, v. t.]
   To lie in warmth; to be exposed to genial heat.
   [1913 Webster]

         Basks in the glare, and stems the tepid wave.
                                                  --Goldsmith.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Bask \Bask\, v. t.
   To warm by continued exposure to heat; to warm with genial
   heat.
   [1913 Webster]

         Basks at the fire his hairy strength.    --Milton.
   [1913 Webster]

WordNet (r) 3.0 (2006):

bask
    v 1: derive or receive pleasure from; get enjoyment from; take
         pleasure in; "She relished her fame and basked in her
         glory" [syn: enjoy, bask, relish, savor, savour]
    2: be exposed; "The seals were basking in the sun"

Moby Thesaurus II by Grady Ward, 1.0:

37 Moby Thesaurus words for "bask":
   adore, appreciate, bask in, be pleased with, delight in,
   derive pleasure from, devour, eat up, enjoy, feast on,
   freak out on, get high on, gloat over, groove on, indulge,
   indulge in, insolate, like, love, luxuriate, luxuriate in,
   rejoice in, relish, revel, revel in, riot in, roll, rollick, savor,
   smack the lips, sun, sun-dry, sunbathe, swim in, take pleasure in,
   wallow in, welter