The Collaborative International Dictionary of English v.0.48:

Ensnarl \En*snarl"\, v. t.
   To entangle. [Obs.] --Spenser.
   [1913 Webster]

WordNet (r) 3.0 (2006):

ensnarl
    v 1: entangle or catch in (or as if in) a mesh [syn: enmesh,
         mesh, ensnarl]

Moby Thesaurus II by Grady Ward, 1.0:

54 Moby Thesaurus words for "ensnarl":
   allure, bait the hook, birdlime, burden, catch, catch out, cramp,
   cripple, cumber, decoy, embarrass, embrangle, encumber, enmesh,
   ensnare, entangle, entoil, entrammel, entrap, entwine, enweb,
   fetter, gin, hamper, hamstring, handicap, hobble, hook, hook in,
   impede, inveigle, involve, lame, lime, lumber, lure, mesh, net,
   noose, perplex, press down, saddle with, shackle, snare, snarl,
   sniggle, spread the toils, tangle, toil, trammel, trap, trip,
   weigh down, wind