Edward Hopkins was a noted scholar of Sanskrit and professor of Sanskrit and comparative philology at Yale. In this paper he discusses the reduplication in Vedic nouns that mirrors the sort of reduplication more commonly found in Indo-European verbs, and suggests verbal origins for such nouns. This explanation, now generally accepted, points out shades of meanings in such nouns and allows for more precise translation and understanding of such forms not only in Sanskrit, but in Greek and Latin nouns with verbal characteristics. This paper is primarily written for linguists, but will also be of use to those who read Latin and Greek.