Webster's Revised Unabridged Dictionary · 1913

Cantle

Cantle , noun

[Old French cantel, chantel, corner, side, piece, French chanteau a piece cut from a larger piece, dim. of Old French cant edge, corner. See 1st Cant.]

1.
A corner or edge of anything; a piece; a fragment; a part.
In one cantle of his law. — Milton
Cuts me from the best of all my land A huge half moon, a monstrous cantle out. — Shakespeare
2.
The upwardly projecting rear part of saddle, opposite to the pommel.

Cantle , transitive verb

To cut in pieces; to cut out from. [Obsolete]