A primitive root; to laugh (in pleasure or detraction); by implication to play: - {deride} have in {derision} {laugh} make {merry} mock ({-er}) {play} {rejoice} (laugh to) {scorn} be in (make) sport.
From H7833; a powder (as beaten small); by analogy a thin vapor; by extension the firmament: - {cloud} small {dust} {heaven} sky.
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Exo 30:36And thou shalt beatH7833some of it very small, and put of it before the testimony in the tabernacle of the congregation, where I will meet with thee: it shall be unto you most holy.