Făt'ness, n.
n. [From fat.] 1. The quality of being fat, plump, or full fed; corpulency; fullness of flesh. Their eyes stand out with fatness. Ps. lxxiii. 7.
Sense 2. Hence, richness; fertility; fruitfulness.
Rich in the fatness of her plenteous soil. Rowe.
Sense 3. That which is fat, unctuous, or greasy; that which makes fat or fertile.
Thy paths drop fatness. Ps. lxv. 11.
The clouds drop fatness. Phillips.