Jupiter (mythology) practice of swearing by Jove to witness an oath in law courts is the origin of the expression "by Jove!"—archaic, but still in use. The name of the god was also adopted as the name of the planet Jupiter; the adjective "jovial" originally described those born under the planet of Jupiter (reputed to be jolly, optimistic, and buoyant in temperament). Jove was the original namesake of Latin forms of the weekday now known in English as Thursday (originally called "Iovis Dies" in Latin). These became "jeudi" in French, "jueves" in Spanish, "joi" in Romanian, "giovedì" in Italian, "dijous" in Catalan,
Jove Books Jove Books Jove Books, formerly known as Pyramid Books, is an American paperback and eBook publishing imprint, founded as an independent paperback house in 1949 by Almat Magazine Publishers (Alfred R. Plaine and Matthew Huttner). The company was sold to the Walter Reade Organization in the late 1960s. It was acquired in 1974 by Harcourt Brace (which became Harcourt Brace Jovanovich) which renamed it to Jove in 1977 and continued the line as an imprint. In 1979, they sold it to The Putnam Berkley Group, which is now part of the Penguin Group. Phil Hirsch was vice president of Pyramid