bokken

Etymology
From, see below.

Noun

 * 1) A wooden katana, used as a training sword.

Etymology 1
From.

Verb

 * 1)  to buck, said of a quadruped, e.g. a horse: to leap upward while arching its back
 * 2)  to react to opposition or adversity grumpily and capriciously, like a crossed spoiled child
 * 3)  to, to , to