The Collaborative International Dictionary of English v.0.48:

Houss \Houss\, n. [F. housse, LL. hulcia, fr. OHG. hulst; akin
   to E. holster. See Holster, and cf. 2d Housing.]
   A saddlecloth; a housing. [Obs.] --Dryden.
   [1913 Webster]