obs. or erron. variant of GNASH v.

1

c. 1600.  Burel, Pilgr., in Watson, Coll. Sc. Poems (1706), II. 25. Sick hashing and knashing, Cums not of cleinlie cukis.

2

1826.  J. Doyle, Ess. Cath. Claims, 248. Some tub for a whale of prejudice to knash its teeth against.

3