History of the name
The name Tuesday comes from a Middle English word, Tiwesday. This word came from the Old English word Tiwes dæg. This was named after the Nordic god Tyr. Tyr was the God of War, like the Roman war god Mars, and Greek god Ares.
In Latin, Tuesday is called Martis dies which means "Mars's Day". In French, Spanish, Italian and Romanian, the (Romance languages), the word for "Tuesday" is nearly the same as the Latin name. Tuesday is mardi in French, martes in Spanish, martedì in Italian, dimarts in Catalan, and marţi in Romanian.
The Celtic languages still spoken use the Latin names, even though none of these languages came from Latin. Tuesday is dé máirt in Irish, Meurzh in Breton, dydd Mawrth in Welsh and Dimàirt in Scottish Gaelic.
The English and Scandinavian names for Tuesday come from the Nordic god Tyr (Old English Tiw):