Lewis Short
multĭplĭcātĭo (noun F) : id.
* A making manifold, increasing, multiplying (postAug.).
* In gen.: frugum,Col. 3, 2, 5: quinariarum,Front. Aquaed. 34: temporum,Sen. Ep. 12, 6.
* In partic., multiplication, Col. 5, 2, 1; Vitr. 9, 1; 10, 16.
Charlton T. Lewis, Charles Short, A Latin Dictionary