The Collaborative International Dictionary of English v.0.48:

Ranch \Ranch\ (r[a^]nch), v. t. [Written also raunch.] [Cf.
   Wrench.]
   To wrench; to tear; to sprain; to injure by violent straining
   or contortion. [R.] --Dryden. "Hasting to raunch the arrow
   out." --Spenser.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Raunch \Raunch\ (r[add]nch), v. t.
   See Ranch. --Spenser.
   [1913 Webster]

WordNet (r) 3.0 (2006):

raunch
    n 1: the quality of lacking taste and refinement [syn:
         coarseness, commonness, grossness, vulgarity,
         vulgarism, raunch]