To affect with pain or uneasiness, either physical or mental; to trouble; to be the matter with; -- used to express some uneasiness or affection, whose cause is unknown; as, what ails the man I know not what ails him. What aileth thee, Hagar Gen. xxi. 17.
To be affected with pain or uneasiness of any sort; to be ill or indisposed or in trouble. When he ails ever so little . . . he is so peevish. Richardson.
Indisposition or morbid affection. Pope.
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