sŭper-tertĭus

a, um, adj.
I. one third as much more (i.e. that bears to another the ratio of 4 to 3): numerus, a transl. of the Gr. ἐπίτριτον, Censor. de Die Nat. 10, 8; 10, 11; Mart. Cap. 7, § 761 sq.
Lewis & Short
A Latin Dictionary, 1879
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