violent, get excited, enraged, chafe, incite
激 centers on intense, forceful energy: something violent, fiercely excited, or enraged. It can also mean to stir up or incite such strong emotion or action.
激 combines 氵 (water) with 敫, which likely contributes the sound and the idea of striking or stirring. The compound suggests water being violently agitated or splashing.
Water 氵 on the left and 敫 (a shape associated with striking) on the right: imagine water being violently struck, splashing and churning in a furious torrent.
For ゲキ, picture a geyser erupting violently: geyser -> ゲキ, and the water shoots up with intense, excited force.
extremely; terrifically; super
violent; furious; tempestuous
stimulus; stimulation; irritation (esp. of the body, e.g. skin, eyes)
extreme (measure, idea, etc.); radical; violent (language)
rage; fury
sudden; abrupt; rapid; sharp; drastic; radical
deep emotion; impression; inspiration
dramatic decrease; sharp drop; sudden fall
fierce battle; hard-fought battle; hot contest; severe fight
crash; smashing (into); ramming; (violent) collision
to intensify
intensification; aggravation
encouragement; spurring (on); cheering (on)
sharp pain; acute pain; intense pain
sharp increase; sudden rise
extremely spicy; fiery hot
fierce fighting
violent shock; agitation; turbulence; turmoil; upheaval; excitement
violent emotion; passion; fury
exhausting work; hard work; severe duty