blight in Irish

(pathology, dated) A diseased condition of the face or skin; specifically, bleeding under the conjunctiva of the eye, a form of skin rash, or a palsy of the face due to cold.

(plant disease) To affect the fertility or growth of (a plant) with a blight (noun sense 1.1), especially one caused by a fungus; to blast, to mildew, to smut.