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,
Prothalamion The poet proceeds to praise them and wishing them all the blessings for their marriages. The poem begins with a fine description of the day when on which he is writing the poem: The poet is standing near the Thames River and finds a group of nymphs with baskets collecting flowers for the new brides. The poet tells us that they are happily making the bridal crowns for Elizabeth and Katherine. He goes on his poem describing two swans at the Thames, relating it to the myth of Jove and Leda. According to the myth, Jove falls in love with