Worn out or ruined because of age or neglect; in a very poor condition due to old age or deterioration. Feeble and infirm.
From Latin 'decrepitus,' literally meaning 'very old,' from 'de-' (intensive) + 'crepare' (to creak, rattle). The original sense was of something making creaking sounds from old age, like old wooden structures or arthritic joints. Entered English in the 15th century via French.
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