שַׁחַק II, [dust,]; pl. שְׁחָקִים clouds, heaven, sh’ḥaḳim, name of one of the seven heavens. Ḥag. 12ᵇ ש׳ שבו רחיים וכ׳ it is named sh’ḥaḳim, for in it stands a mill and grinds manna for the righteous. Gen. R. s. 13 למה … ש׳ שהן שוחקין וכ׳ why are they (the clouds) called sh’ḥaḳim? Because they grind the water … like a stomach (grinding the food); Tanḥ. Mick. 1; Koh. R. to I, 7. Ib. איכן … בש׳, v. נָזַל. Midr. Till. to Ps. XVIII, v. שָׁחַק; a. e.