WordNet (r) 3.0 (2006):

wear on
    v 1: pass slowly (of time); "The day wore on"

Moby Thesaurus II by Grady Ward, 1.0:

51 Moby Thesaurus words for "wear on":
   be infinitely repetitive, be tedious, beat, burn out, crawl, creep,
   debilitate, do in, do up, drag, drag along, drag on, enervate,
   exhaust, fag, fag out, fatigue, flag, frazzle, glut, go on,
   go on forever, harass, irk, jade, knock out, knock up, linger,
   linger on, overfatigue, overstrain, overtire, overweary, pall,
   poop, poop out, prostrate, satiate, tarry, tire, tire out,
   tire to death, tucker, use up, weaken, wear, wear down, wear out,
   weary, wilt, wind