I.C. Massim was a Romanian linguist and a founding member of the Romanian Academy (Academia Română). The crowning achievement of I.C. Massim's liguistic career was the publication in 1875, together with August Treboniu Laurian, of the first complete dictionary of the Romanian language, a monumental work that included two volumes of words of Latin origin and a comprehensive "Glossary" of words of non-Latin or "foreign" origin in the Romanian language.