Definition of "drouth"

Name other great catastrophes this world has seen, the floods, the fires, the earthquakes, plague or famine or drouth.

1965, Marguerite Young, Miss MacIntosh, My Darling, Scribner, page 174

He listened to her licking lap. Ham and eggs, no. No good eggs with this drouth.

1922 February, James Joyce, “[Episode 4]”, in Ulysses, Paris: Shakespeare and Company, […]