He also undertook the task of compiling the first Finnish-Swedish dictionary ("Finsk-Svenskt lexikon", 1866–1880). The result comprised over 200,000 entries, and many of the Finnish translations were coined by Lönnrot himself. His vast knowledge of traditional Finnish poetry made him a definite authority in Finland and many of his inventions have stuck. Finnish scientific terminology was in particular influenced by Lönnrot's work and therefore many abstract terms that have a Latin or Greek etymology in mainstream European languages appear as native neologisms in Finnish. Examples from linguistics and medicine include "kielioppi" (grammar), "kirjallisuus" (literature), "laskimo" (vein) and "valtimo" (artery). This may be well contrasted with the so-called inkhorn debate of English, in which proponents of Saxon-based words were largely defeated.