Sc. and U.S. [Of doubtful origin: cf. SMIT sb.2] A particle, bit.

1

  Smitchel is also used in the same sense in U.S.

2

c. 1840.  J. Ramsay, Eglinton Park Meeting, xxxv. Every smitch o’t was a kin’ o’ red.

3

1884.  Advance (Chicago), 10 July. A little smitch of an island.

4