foundation
/fau̇n-ˈdā-shən/
noun
the act of founding
a basis (such as a tenet, principle, or axiom) upon which something stands or is supported
funds given for the permanent support of an institution : endowment
here since the foundation of the school
noun
a stone in the foundation of a building; especially : such a stone laid with public ceremony
basis, groundwork
idiom
to create a usually stone or concrete structure that supports a building from underneath
to provide something (such as an idea, a principle, or a fact) from which another thing develops or can develop