By reduplication from galal; a wheel; by analogy, a whirlwind; also dust (as whirled) -- heaven, rolling thing, wheel.
see HEBREW galal
גַּלְגַּל noun masculineEcclesiastes 12:6 wheel, whirl, whirlwind (on formation compare BaNB 204) — absolute ׳ג Ezekiel 10:2 7t.; גַּלְגַּ֑ל Psalm 83:14; plural with suffix גַּלְגִּלָּיו Isaiah 5:28; Jeremiah 47:3; —
a. of war-chariot Isaiah 5:28; Jeremiah 47:3, also collective Ezekiel 23:24; 26:10; perhaps also in Ezekiel's vision 10:2, 6, 13 (compare wheelwork) but compare below
b. for drawing water Ecclesiastes 12:6.
2. a. whirl (of dust or chaff) Psalm 83:14; Isaiah 17:13, simile of foes put to flight by God.
b. perhaps whirling of wheels Ezekiel 10:2, 6, 13 Sm RV, but compare above
c. whirlwind Psalm 77:19.