NORDIC • DICCIONARIO INGLES.COM • Definition of Nordic

... incapable of precise measurement, are likewise of great importance. And it is the common opinion that the Negro differs in such traits even more than in intellect proper. He is said to be lacking in that aggressive competitiveness which has been responsible for so much of the achievement of the Nordic race; it is alleged that his sexual impulses are strongly developed and inhibitions lacking; that he has "an instability of character, involving a lack of foresight, an improvidence, a lack of persistence, ...

— Applied Eugenics • Paul Popenoe and Roswell Hill Johnson