verb (used with object), en·fee·bled, en·fee·bling.
- to make feeble; weaken: That bout of pneumonia enfeebled him.
verb
- (tr) to make weak; deprive of strength
mid-14c., from Old French enfeblir “become weak,” from en- (see en- (1)) + feble (see feeble). Related: Enfeebled; enfeebling.