Hebrew word
saq
sak
שַׂק
What it means
properly, a mesh, i.e. coarse loose cloth or sacking
properly, a mesh (as allowing a liquid to run through), i.e. coarse loose cloth or sacking (used in mourning and for bagging); hence, a bag (for grain, etc.)
Where it comes from
from shâqaq (שָׁקַק)