evisceration (n.)

• abatement
• attenuation
• attrition
• deadening
• debilitation
• devitalization
• dilution
• disembowelment
• enervation
• enfeeblement
• exhaustion
• extenuation
• fatigue
• inanition
• mitigation
• reduction
• relaxation
• slackening
• softening
• thinning
• weakening