Quantum Valebant
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
As much as they were worth. In pleading. The common count in an action of assumpsit for goods sold and delivered, founded on an implied assumpsit or promise, on the part of the defendant, to pay the plaintiff as much os the goods were reasonably worth.
3 BL Comm. 161; 1 Tidd, Pr. 2.