Source : Webster's Revised Unabridged Dictionary (1913)

Cosher \Cosh"er\ (k?sh"?r), v. t. [Ir. cosair a feast, a
   banquet? or cf. F. coucher to lie. Cf. {Couch}, {Coshering}.]
   1. (Old Law) To levy certain exactions or tribute upon; to
      lodge and eat at the expense of. See {Coshering}.

   2. To treat with hospitality; to pet. [Ireland]

Source : WordNet®

cosher
     adj : conforming to dietary laws; "kosher meat"; "a kosher
           kitchen" [syn: {kosher}]