Source : Webster's Revised Unabridged Dictionary (1913)

Entrail \En*trail"\, v. t. [Pref. en- + OF. treiller to grate,
   lattice, F. treille vine, arbor. See {Trellis}.]
   To interweave; to intertwine. [Obs.] --Spenser.

Entrail \En*trail"\, n.
   Entanglement; fold. [Obs.] --Spenser.