multĭplĭco, āvi, ātum, 1, v. a. [multiplex], to multiply, increase, augment.
I In gen. (class.; syn.: augeo, amplifico, amplio): aes alienum. Caes. B. C. 3, 32: auxiliis multiplicatis. Planc. ap. Cic. Fam. 10, 8, 4: flumina collectis multiplicantur aquis, Ov. R. Am. 98: multiplicandis usuris, Nep. Att. 2, 5: voces, Plin. 36, 15, 23, § 99: regnum Eumenis, Liv. 37, 54: multiplicata gloria, Cic. Q. Fr. 1, 2, 5, § 16: domus multiplicata, enlarged , id. Off. 1, 39, 138: dona, Liv. 42, 61.—
II In partic., in arithmetic, to multiply : multiplicantur in se duo latera, Col. 5, 2, 1: has duas summas in se multiplicato, id. 5, 2, 6: latitudinis pedes cum longitudinis pedibus sic multiplicabis, id. 5, 2, 3: ter tria, Aus. Idyll. 11, 2: annos quater, dies octies, Sol. 1, 29; 42.