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debilitate

de·bil·i·tate

debilitate

pronunciation:
dih bI lih teIt
part of speech: transitive verb
inflections: debilitated, debilitates, debilitating
definition: to make feeble; weaken.
His long illness debilitated him.
antonyms:
invigorate
similar words:
canker, depress, enervate, weaken
derivations: debilitative (adj.), debilitation (n.)