sand

Boyd’s Bible Dictionary:

(whirling). Abundant in the wastes of Palestine, Arabia, and Egypt. Used much figuratively. Innumerable multitudes (Gen. 32:12); abundance (Gen. 41:49); weight (Job 6:3; Prov. 27:3); sea boundary (Jer. 5:22); hiding place (Ex. 2:12; Deut. 33:19).

Strong’s Dictionary of Greek Words:

Greek:
ἄμμος
Transliteration:
ammos
Phonic:
am’-mos
Meaning:
perhaps from 260; sand (as heaped on the beach)
KJV Usage:
sand