The Collaborative International Dictionary of English v.0.48:

Ort \Ort\ ([^o]rt), n.; pl. Orts ([^o]rts). [Akin to LG. ort,
   ortels, remnants of food, refuse, OFries. ort, OD. oorete,
   ooraete; prob. from the same prefix as in E. ordeal + a word
   akin to eat.]
   A morsel left at a meal; a fragment; refuse; -- commonly used
   in the plural. --Milton.
   [1913 Webster]

         Let him have time a beggar's orts to crave. --Shak.
   [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

73 Moby Thesaurus words for "orts":
   afterglow, afterimage, balance, bones, butt, butt end, candle ends,
   chaff, culm, deadwood, debris, detritus, dishwater, draff, dregs,
   dust, end, fag end, filings, fossil, garbage, gash, hogwash,
   holdover, husks, leavings, lees, leftovers, odds and ends, offal,
   offscourings, parings, potsherds, rags, raspings, refuse, relics,
   remainder, remains, remnant, residue, residuum, rest, roach,
   rubbish, ruins, rump, sawdust, scourings, scrap iron, scraps, scum,
   shadow, shards, shavings, slack, slag, slop, slops, straw, stubble,
   stump, survival, sweepings, swill, tares, trace, vestige, wastage,
   waste, waste matter, wastepaper, weeds