Quan"tum (?), n.; pl. Quanta (#). [L., neuter of quantus how great, how much. See Quantity,]
"Without authenticating . . . the quantum
of the charges."
A definite portion of a manifoldness, limited by a mark or by a boundary.
W. K. Clifford.
Quantum meruit () [L., 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 (), ∨ Quantum suff. <-- abbr. q.s. (pharmacy) -->[L., as much suffices] Med., a sufficient quantity. -- Quantum valebat () [L., as much at it was worth] Law, a count in an action to recover of the defendant, for goods sold, as much as they were worth.
© Webster 1913.