Ail /(āl)/

Ail

v. t.

imp. & p. p. Ailed; p. pr. & vb. n. Ailing

  1. 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.

Ail

v. i.
  1. 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.

Ail

n.
  1. Indisposition or morbid affection.