From galal; something rolled, i.e. A heap of stone or dung (plural ruins), by analogy, a spring of water (plural waves) -- billow, heap, spring, wave.
see HEBREW galal
H1530. gal
גַּל noun masculineGenesis 31:48 heap, wave, billow (as rolled together, rolling, rolling up), also
spring, ᵑ0 Song of Solomon 4:12 compare
3 below — absolute גַּל Job 8:17 5t. (including הַגַּל Genesis 31:48 +); גָּ֑ל 31:46; הַגָּ֑ל 31:46; לַגָּ֑ל Isaiah 25:2; construct גַּלֿ Joshua 7:26 + 2t. + Genesis 31:47-48, q.see below; plural גַּלִּים 2 Kings 19:25 6t.; construct גַּלֵּיֿ Isaiah 48:18; suffix גַּלָּיו Psalm 89:10 6t.; גַּלֵּיהֶם 65:8 2t.; —
1 heap of stones,
a. ׳ג אבנים raised (הקים) over dead body Joshua 7:26; 8:29; compare 2 Samuel 18:17 (with הִצִּיב).
b. גַּל alone Job 8:17 (roots wrapped about it).
c. heap or pile made (עשׂה) for use in ratifying compact of Jacob with Laban Genesis 31:46 (twice in verse); 31:48; 31:51; Genesis 38:52; 31:52 (twice in verse) compare also גַּלְעֵד
proper name, dual heap of ruins Isaiah 25:2; elsewhere plural Hosea 12:12; 2 Kings 19:25 = Isaiah 37:26; Job 15:28 Jeremiah 9:10; 51:37.
2 waves (rollers) in poetry, only plural, waves of sea Jeremiah 5:22; 31:35; Isaiah 51:15; Job 38:11; Psalm 65:8; 89:10; 107:25; 107:29; compare also in simile Ezekiel 26:3; Isaiah 48:18 (גַּלֵּיהַֿיָּם); figurative of chastisements from ׳י Psalm 42:8 ("" מִשְׁבָּרִים) Jonah 2:3 ("" id.); of army of Babylon's conqueror Jeremiah 51:42, 55; compare Zechariah 10:11 (VB; but BevJPh xviii. 88 proposes גִּבְלִים compare Ezekiel 27:9).
3 spring, Song of Solomon 4:12 חָתוּם מַעְיָן נָעוּל גַּל כַּלָּ֑ה אֲחוֺתִי נָעוּל גַּן a garden barred (is) my sister, bride, a spring barred, a fountain sealed; but גַּן for ᵑ9 ᵑ6 ᵐ5 גַּל.