Noah Webster
Dump
DUMP, noun [G.]
1. A dull gloomy state of the mind; sadness; melancholy; sorrow; heaviness of heart.
In doleful dumps.
2. Absence of mind; reverie.
3. A melancholy tune or air. [This is not an elegant word, and in America, I believe, is always used in the plural; as, the woman is in the dumps.]