1. (n.) The state of being emptied or deprived of strength or energy\.

2. (n.) The act of draining out or draining off; the act of emptying completely of the contents.

3. (n.) An ancient geometrical method in which an exhaustive process was employed. It was nearly equivalent to the modern method of limits.

abatement ablation absorption assimilation attenuation attrition blunting breakdown burning up cachexia cachexy chronic ill health circulatory collapse cleaning out clearance clearing collapse consumption corrosion crack-up crackup damping deadening debilitation debility decrease decrement decrepitude defecation delicacy delicate health deliquescence depletion depreciation devitalization digestion dilution discharge discharging cargo dissipation dissolution drain drainage draining drawing out dulling eating up effemination egress elimination emptying enervation enfeeblement erosion evacuation evaporation evisceration excretion exhaustedness exhausting expending expenditure extenuation fatigue feebleness finishing fragility frailty healthlessness hypochondria hypochondriasis ill health impoverishment inanition infirmity ingestion invalidism invalidity languishing languishment lassitude leakage loss mitigation morbidity morbidness nervous breakdown nervous exhaustion nervous prostration neurasthenia off-loading peakedness poor health prostration reduction relaxation removal shrinkage sickliness slackening softening spending squandering thinning tiredness unhealthiness unloading unsoundness unwholesomeness using using up valetudinarianism venting voidance voiding wastage waste wastefulness wasting wasting away weakening weakliness wear and tear weariness wearing wearing away wearing down