Derivative of root גלל — canonical: H1556 גָּלַל (20 family members).

A mass that has been rolled or gathered together, commonly referring to a heap of stones or a mound created through rolling, piling, or accumulation; by extension, a pile of refuse (such as dung), and figuratively, a surging mass of water (waves) or a bubbling spring. The word can denote both solid (heap or pile) and liquid (wave, spring) accumulations, dependent on context.