OVERAGE
overage, overaged, superannuated, over-the-hill
(adjective) too old to be useful; “He left the house...for the support of twelve superannuated wool carders”- Anthony Trollope
overage
(noun) a surplus or excess of money or merchandise that is actually on hand and that exceeds expectations
Source: WordNet® 3.1
Etymology 1
Adjective
overage (comparative more overage, superlative most overage)
Having an age that is greater than a stipulated minimum.
Too old to be of use in a particular situation.
Antonyms
• underage
Verb
overage (third-person singular simple present overages, present participle overaging, simple past and past participle overaged)
To have too long an aging process.
Etymology 2
Noun
overage (countable and uncountable, plural overages)
A surplus of inventory or capacity or of cash that is greater than the amount in the record of an account.
A state of being more than one ought to be.
Source: Wiktionary