1. A disease incident to plants, affecting them variously. sometimes the whole plant perishes; sometimes only the leaves and blossoms, which will shrivel, as if scorched.
2. Any thing nipping or blasting.
In America, I have often heard a cutaneous eruption on the human skin called by the name of blights.
BLIGHT, verb transitive To affect with blight; to blast; to prevent growth, and fertility; to frustrate.