Slavic influence on Romanian such as "suflet" ("soul") copy the logic of the Slavic word "душа", and the original Latin "anima" shifted its meaning to "inimă" ("heart"). Other examples include "lună" (meaning "month" and "the moon") and "lume" (originally "light"), used in the sense of "the world". Certain expressions (such as "din topor", "unrefined") also tend to be similar to their Slavic equivalents: "топорный = грубый". Another feature of modern Romanian which has resulted from contact with Slavic speakers is the formation of numerals from 11 to 20. For instance, "unsprezece" ("eleven") is based on three components ("un+spre+zece", "one above [from Latin "super"] ten").
Friedrich Christian Diez Friedrich Christian Diez Friedrich Christian Diez (15 March 179429 May 1876) was a German philologist. The two works on which his fame rests are the "Grammar of the Romance Languages" (published 1836-1844), and the "Etymological Dictionary of the Romance Languages" (1853, and later editions). He spent most of his career at University of Bonn. Diez was born at Giessen, in Hessen-Darmstadt. He was educated first at the gymnasium and then at the university of his native town and Göttingen. There he studied classics under Friedrich Gottlieb Welcker who had just returned from a two years' residence in Italy to fill