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 published in the 1970s were the series of historical novels written by John Jakes, the Kent Family Chronicles, beginning with "The Bastard" (1974), which were well-timed for popular interest in the U.S. Revolutionary War and the bicentennial celebration of independence. More modest or more critical than commercial successes published in the decade included "Man on Fire: A Novel of Revolution" by Bruce Douglas Reeves (1971) and several novels by Barry N. Malzberg. A series of "crossover" books, bridging prose fiction and comics, was the eight-volume "Weird Heroes" series of anthologies and novels (1975–77), where new superheroes and pulp-magazine-style adventure heroes