swash 
(swŏsh, swôsh)
(swŏsh, swôsh)n.
1.
a. A splash of water or other liquid hitting a solid surface.
b. The sound of such a splash.
2.
a. The washing of water over an expanse of sand, as after a wave breaks on a beach.
b. Southeastern US A tidal channel forming a break in a beach, barrier island, or sandbar.
3. See uprush.
4.
a. Swagger or bluster.
b. A swaggering or blustering person.
v. swashed, swash·ing, swash·es
v.intr.
1. To strike, move, or wash with a splashing sound.
2. To swagger.
v.tr.
1. To splash (a liquid).
2. To splash a liquid against.
[Probably imitative.]