Basis
Basis (bā"sis) , noun
[Latin basis, Greek ba`sis. See Base, n.]
1.
The foundation of anything; that on which a thing rests. — Dryden
2.
The pedestal of a column, pillar, or statue. [Obsolete]
If no basis bear my rising name.
3.
The groundwork; the first or fundamental principle; that which supports.
The basis of public credit is good faith.
4.
The principal component part of a thing.