noun
( -es )
Etymology: Middle English fatnesse, from Old English fǣtnes, from fǣtt fat + -nes -ness — more at fat
1.
a. : the quality or state of being fat or rich in fats : fullness of flesh : corpulence , obesity
b. : fertility , fruitfulness
the fatness of the orchards
a land of all but incredible fatness and beauty — Russell Lord
2. obsolete : greasy or oily substance found in animal or vegetable matter : fat
3. : something that makes rich or fertile
let it come like the abundant fatness of the clouds upon the thirsting earth — Benjamin Fine