Webster's Revised Unabridged Dictionary · 1913

Surcingle

Surcingle , noun

[Old English sursengle, Old French sursangle. See Sur-, and Cingle, Shingles.]

1.
A belt, band, or girth which passes over a saddle, or over anything laid on a horse's back, to bind it fast.
2.
(Ecclesiastical) The girdle of a cassock, by which it is fastened round the waist.