1) to neigh, stamp the ground, prance, snort
2) to be high-spirited
2a) of horses
2b) of men
2b1) to take on lofty airs
2b2) behave arrogantly
2c) to be tumultuous, to rage

akin to 1032, 1031; to snort (as a spirited horse), i.e. (figuratively) to make a tumult: KJV -- rage.
see GREEK for 1031
see GREEK for 1032