ˈcothy, coathy,a.dial. [f. cothe n. + -y1.] Diseased, sickly. Of sheep: Affected with the ‘coe’ or rot. a1825Forby Voc. E. Anglia, Cothy, faint, sickly, ailing..A dog is said to be cothy when he is meek and delicate.1883Hampshire Gloss., Coathy, rotten; applied to diseased sheep.