Obs. Erroneous form of BASS sb.1, a kind of fish [due to use of bass for bast in other words.]

1

1709.  T. Robinson, Nat. Hist. Westmld., The fish bred in Bassenthwait water are basts.

2

1759.  MS. at Urswick, Perch or basts brought from Dalton Tarn.

3