arousal (n.)

• aggravation
• agitation
• animation
• awakening
• eduction
• electrification
• emotion
• evocation
• exacerbation
• exasperation
• excitation
• excitement
• exhilaration
• firing
• fomentation
• galvanization
• incitation
• incitement
• inflammation
• infuriation
• instigation
• irritation
• perturbation
• provocation
• reveille
• rousing
• stimulation
• stimulus
• stirring