The Collaborative International Dictionary of English v.0.48:

Hash \Hash\, v. t. [imp. & p. p. Hashed (h[a^]sht); p. pr. &
   vb. n. Hashing.] [From Hash, n.: cf. F. hacher to hash.]
   To chop into small pieces; to mince and mix; as, to hash
   meat. --Hudibras. Hasheesh