in accord with
(formal) in agreement with

This action would not be in accord with our policy.

Botanists are not in complete accord about how many species exist. 

surplus

more than is needed

The world is now producing large food surpluses.

The government has authorized the army to sell its surplus weapons.

Wheat was in surplus that year.

The store is selling off stock that is surplus to requirements (= more than they need to have). 

fountainhead

a source or origin

He is the fountainhead of all that is holy and sacred in the universe.