Days of the Week Word Origins

The English names for the days of the week have their roots in astrology and ancient cultures. The practice of naming days after heavenly bodies began – at least for the Western world – with the Greeks, and was then adopted by the Romans and Anglo-Saxons. For this reason, the names we are so familiar with draw from Latin and Old English, aligning stars and myths with calendar days. Next time you hear a friend or coworker expressing relief at the end of the week with TGIF, you’ll know that it’s more apt to be thanking goddess!

From the Old English Monandæg, a combination of mona, meaning “moon”, and dæg, meaning “day.” Most Romance languages use the Latin for “moon” – luna – as in the French lundi and Spanish lunes.

From the Old English Tiwesdæg, meaning “Tyr’s (or Tiw’s/Tew’s Day”), named after the god of war of Norse mythology. Naming the second day of the week after a war god stems from the Romans’ use of Mars for the same day, leading to, among others, the French mardi and Spanish martes.

From the Old English Wodnesdæg, or “Woden’s (Odin’s) Day”, named after an important Germanic and Scandinavian god. The name of this day, too, is borrowed from the Romans, who used the god Mercury for Wednesday. The French is mercredi and the Spanish is miércoles.

From the Old English Þurresdæg, meaning “Thor’s Day” after the Norse god of thunder. The Latin equivalent is named after Jupiter, as in the French jeudi and Spanish jueves.

From the Old English Frigedæg, named after the Anglo-Saxon goddess Frigg. It is based on the Roman goddess Venus, and used in French as vendredi and in Spanish as viernes.

From the Old English Sæterdæg, or “Saturn’s Day,” this is the only day to have retained its Latin origins from the god of agriculture. In French it is samedi and in Spanish, sábado.

From the Old English Sunnandæg, the day of the sun. Most Romance languages have used the Latin for “Lord’s Day”, as in the French dimanche and Spanish domingo.

  • Jerome
    Posted at 06:04h, 09 October Reply

    Cool! Nice to know. And it’s fascinating to discover these ancient roots of everyday words …

  • Pingback:100 Fun & Informative Blog Posts Every Grammar Geek Should Bookmark | Online Universities
    Posted at 22:48h, 21 December Reply

    […] Days of the Week Word Origins. If you’ve ever wondered where the days of the week got their names, then you should check out this post. […]

  • Diane
    Posted at 19:04h, 21 April Reply

    Really cool, I knew that for French but had no idea that the names of the days in English had similar origins.

  • Majid
    Posted at 07:52h, 12 August Reply

    Hello. At the lecture, I see that the name of weekdays have Persian roots, but I’m not sure. Please help me to know the fact on this matter.

  • Koorosh Rad
    Posted at 06:57h, 16 September Reply

    So useful for our knowledge by clear historic roots. In western Culture & history, names & Idioms are coming mostly from Roman bases.

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