Lewis Short
(verb) : multĭplĭco, āvi, ātum, 1, multiplex
* To multiply, increase, augment.
* 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.
* 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.
Charlton T. Lewis, Charles Short, A Latin Dictionary