The Collaborative International Dictionary of English v.0.48:

Hamper \Ham"per\, v. t. [imp. & p. p. Hampered (-p[~e]rd); p.
   pr. & vb. n. Hampering.]
   To put in a hamper.
   [1913 Webster]

Moby Thesaurus II by Grady Ward, 1.0:

36 Moby Thesaurus words for "hampered":
   bound, burdened, charged, cumbered, encumbered, fettered, fraught,
   freighted, handcuffed, in bonds, in chains, in irons, ironbound,
   laden, loaded, manacled, oppressed, overburdened, overcharged,
   overfraught, overfreighted, overladen, overloaded, overtaxed,
   overweighted, saddled, shackled, strapped, taxed, tethered, tied,
   tied down, tied up, trammeled, weighted, weighted down