overage

Short definition from Wiktionary

Adjective

1. 1
   Having an age that is greater than a stipulated minimum.
2. 2
   Too old to be of use in a particular situation.

Verb

1. 1
   To have too long an aging process.

Noun

1. 1
   A surplus of inventory or capacity or of cash that is greater than the amount in the record of an account.
2. 2
   Excess; a state of being more than it ought to be.
3. 3
   Any additional sums payable following the purchase of land, calculated on a prearranged basis, on the occurrence of certain specified events that are deemed to increase the value of that land; usually in the context of the development and further sale of that land.