erroneous form of CINCH sb. and v.
1866. J. K. Lord, Brit. Columb., I. 234. One girth only is used, styled a ‘synch,’ made of horsehair. Ibid. The saddle is firmly ‘synched.’
1888. Lees & Clutterbuck, B. C., 1887, xxi. (1892), 229. A synch (girth) of ordinary size.
