Quan'tum, n.

n. [Lat., from quantus, how great, how much.] Quantity; amount. [Rare.] “Without authenticating the value or the quantum of the charges.” Burke.

Quantum meruit. [Lat., as much as he merited.] (Law.) A count in an action grounded on a promise that the defendant would pay to the plaintiff for his service as much as he should deserve.—Quantum sufficit, or Quantum suff. [Lat., as much as suffices.] (Med.) A sufficient quantity.—Quantum valebat. [Lat., as much as it was worth.] (Law.) A count in an action to recover of the defendant, for goods sold, as much as they were worth. Blackstone.