हास

Etymology
.

Noun

 * 1) laughter, merriment, ridicule
 * 2) a joke

Etymology
of the root.

Noun

 * 1) laughing, laughter, mirth
 * 2) mocking, derision
 * 3) a jest, joke, fun
 * 4) dazzling whiteness (regarded as laughter in which the teeth are shown)
 * 5) pride, arrogance