NOUN (2)

1. the property of being more than sufficient; comfortable sufficiency;
- Example: "the ampleness of her servings more than satisfied his hunger"

2. the property of impressive largeness in size;
- Example: "he admired the ampleness of its proportions"

The Collaborative International Dictionary of English v.0.48:

Ampleness \Am"ple*ness\, n.
   The state or quality of being ample; largeness; fullness;
   completeness.
   [1913 Webster]

WordNet (r) 3.0 (2006):

ampleness
    n 1: the property of being more than sufficient; comfortable
         sufficiency; "the ampleness of her servings more than
         satisfied his hunger"
    2: the property of impressive largeness in size; "he admired the
       ampleness of its proportions"