A primitive root to agitate violently -- move, shake, toss, trouble.
H1607. gaash
[גָּעַשׁ] verb shake, quake (Late Hebrew id.) —
Qal Imperfect וַתִּגְעַשׁ Psalm 18:8 a = 2 Samuel 22:8 a Kt (Qr Hithpa`el); — quake of earth at theoph., Psalm 18:8 = 2 Samuel 22:8 (read Kt; "" רעשׁ).
Pu`al Imperfect be shaken up, convulsed יְגֹעֲשׁוּעַֿם Job 34:20 a people are convulsed.
Hithpa`el shake back and forth, toss or reel to and fro וַיִּתְגָּעַשׁ Qr 2 Samuel 22:8 a (< Kt Qal); יִתְגָָּֽעֲשׁוּ Jeremiah 46:7, וַיִּתְגָָּֽעֲשׁוּ Psalm 18:8b + 2t.; — of mountains 18:8b = 2 Samuel 22:8 b; of waves of sea, Jeremiah 5:22; of waters of Nile 46:7 (compare 46:8).
Hithpo`el Perfect וְהִתְגֹּעֲשׁוּ consecutive Jeremiah 25:16; Imperfect יִתְגֹּעֲשׁוּ 46:8; id. of waters of Nile 46:8; of drunken men, reel to and fro, 25:16 (figurative of nations confounded by ׳י).