សាធុ

Etymology
From.

Noun

 * 1) generosity, charity, kindness
 * 2) a kind or generous person
 * 3) scholar

Verb

 * 1) to greet an elder respectfully

Adjective

 * 1) to be good, righteous; excellent; correct, true, exact; proper

Interjection

 * 1) well done, bravo, amen