"A cleaving tool having a wedge-shaped blade, with a handle set at right angles to the length of the blade, used in splitting staves for casks and the like. It is driven by a mallet." -Whitney, 1911

Frow

"A cleaving tool having a wedge-shaped blade, with a handle set at right angles to the length of the…

"The salmon swimming leisurely. The body, it will be observed, is bent in two curves, one occurring towards the head, the other towards the tail. The shape of the salmon is admirably adapted for cleaving the water."—Pettigrew, 1857

Salmon

"The salmon swimming leisurely. The body, it will be observed, is bent in two curves, one occurring…