Word Study
sinch
CIDE DICTIONARY
sinch, n. [See Cinch.].
A saddle girth made of leather, canvas, woven horsehair, or woven grass. [1913 Webster]
sinch, v. t.
To gird with a sinch; to tighten the sinch or girth of (a saddle); as, to sinch up a sadle. [1913 Webster]
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