[1] : The Collaborative International Dictionary of English v.0.48

elapse \elapse"\, v. i. imp.  p. p. elapsed; p. pr.  vb.
   n. elapsing. l. elapsus, p. p. of elabi to glide away; e
   out + labi to fall, slide. see lapse.
   to slip or glide away; to pass away silently, as time; --
   used chiefly in reference to time.
   1913 webster

         eight days elapsed; at length a pilgrim came. --hoole.
   1913 webster
see also:
elapsed elapsing lapse 

[2] : WordNet (r) 2.0

elapsed
     adj : of time having passed or slipped by; "elapsed time"

[3] : Moby Thesaurus II by Grady Ward, 1.0

33 moby thesaurus words for "elapsed":
   ago, antiquated, antique, blown over, by, bygone, bypast, dated,
   dead, dead and buried, deceased, defunct, departed, expired,
   extinct, finished, forgotten, gone, gone glimmering, gone-by,
   has-been, irrecoverable, lapsed, no more, obsolete, over, passe,
   passed, passed away, past, run out, vanished, wound up

Elapsed >> E Words
Elapsed, definition of term: Elapsed
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