Liquidated account
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
An account whereof the amount is certain and fixed, either by the act and agreement of the parties or by operation of law; a sum which cannot be changed by the proof; it is so much or nothing; but the termdoes not necessarily refer to a writing.
Nisbet v. Lawson, 1 Ga. 287.