n. 1. The quality or state of being fat, plump, or full-fed; corpulency; fullness of flesh. [ 1913 Webster ]
Their eyes stand out with fatness. Ps. lxxiii. 7. [ 1913 Webster ]
2. Hence; Richness; fertility; fruitfulness. [ 1913 Webster ]
Rich in the fatness of her plenteous soil. Rowe. [ 1913 Webster ]
3. That which makes fat or fertile. [ 1913 Webster ]
The clouds drop fatness. Philips. [ 1913 Webster ]