The Collaborative International Dictionary of English v.0.48:

Lounge \Lounge\ (lounj), v. i. [imp. & p. p. Lounged (lounjd);
   p. pr. & vb. n. Lounging (loun"j[i^]ng).] [OE. lungis a
   tall, slow, awkward fellow, OF. longis, longin, said to be
   fr. Longinus, the name of the centurion who pierced the body
   of Christ, but with reference also to L. longus long. Cf.
   Long, a.]
   To spend time lazily, whether lolling or idly sauntering; to
   pass time indolently; to stand, sit, or recline, in an
   indolent manner.
   [1913 Webster]

         We lounge over the sciences, dawdle through literature,
         yawn over politics.                      --J. Hannay.
   [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

45 Moby Thesaurus words for "lounging":
   accubation, accumbency, accumbent, couchant, couche, crawling,
   dallying, dawdling, decumbency, decumbent, dillydallying,
   dolce far niente, draped, flat, goofing off, groveling, idling,
   lazing, lingering, loafing, loitering, loll, lolling, lying,
   mopery, procumbent, prone, proneness, prostrate, prostration,
   reclination, reclining, recumbency, recumbent, repose, reposing,
   resupine, sprawl, sprawled, sprawling, spread, supine, supineness,
   tarrying, trifling