October, November, and December also retain the names by which they were known when there were but ten months in the year, being derived from the Latin words Octo, Novem, and Decem — eight, nine, and ten. NAMES OF THE DAYS English names for days of the week come from Norse mythology by way of Anglo-Saxon, and for that reason are often similar to the Roman names, which the Teutonic tribes adapted. The Romans named their days after the sun, moon and planets — Mars, Mercury, Jove (Jupiter), Venus and Saturn, which were named after their gods. Sunday, the sun's day, is the same in German: Sonntag. But Italian, French and Spanish name it after the Lord's Day. Monday, the moon's day, is Montag in German (Mond moon), but the Latin luna, for moon, survives in Italian, French, Spanish. Tuesday is the day of Tyr, Norse god of war; the French Mardi and Italian Martedi come from Mars, also Roman god of war. Wednesday comes from Woden, a Norse god, but the Romance languages derive their words from the Roman Mercury, while the Germans call it Mittwoch — midweek. Thursday is the day of Thor, god of thunder. His Latin equivalent, Jove, accounts for Giovedi (Ital.), Jeudi (Fr.), Jueves (Span.). Friday is the day of Freya, Norse goddess of marriage. Similarly the Romance languages get their names from Venus, Roman goddess of love. Saturday is derived from Saturn. In Italian it is Sabbato, the Sabbath; Sabado in Spanish.