Sir James Hopwood. 1877--1946, English astronomer, physicist, and mathematician, best known for his popular books on astronomy. He made important contributions to the kinetic theory of gases and the theory of stellar evolution
masc. proper name, from Fr. equiv. of John. Fem. proper name is from Fr. equivalent of Jane.
jean
"twilled cotton cloth," 1436, from Fr. jean fustian "fustian (a type of twilled cotton cloth) of Genoa," the city in Italy, from O.Fr. Jannes "Genoa," from L. Genua, perhaps from janua "gate," or in ref. to the god Janus (q.v.). The plural form became standard 19c. First used