The act or process of arousing; the state of being aroused or awakened.
From arouse plus -ment (Old French suffix creating nouns from verbs, indicating a state or action). Similar to arousal but with an -ment construction.
While 'arousement' is grammatically sound, it's almost never used today—modern English prefers 'arousal' instead, showing how languages constantly prune and simplify their word options!
Complete word intelligence in one call. Free tier — 50 lookups/day.