Why are English days named what they are?

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Reading time: 4 minutes

Ever wondered why Monday is called Monday or how Wednesday got its name? The names of the days of the week in English have fascinating origins, rooted in ancient history and steeped in mythology. Understanding these origins not only enriches our language ability but also provides intriguing insights into cultural heritage.

Origins of the days of the weeks names
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Origins of the seven-day week

The concept of a seven-day week has ancient origins, tracing back to the Babylonians around 1500 BCE. The Babylonians, keen astronomers, divided their lunar cycle into four weeks of seven days each, aligning with the phases of the moon. This practice was later adopted by the ancient Greeks and Romans, who found the seven-day cycle practical and meaningful.

The ancient Hebrews' influence also played a crucial role in establishing the seven-day week. According to the biblical account of creation, God created the world in six days and rested on the seventh, establishing a divine precedent for a seven-day cycle. This tradition was deeply ingrained in Hebrew culture and religious practices.

By the 1st century CE, the Romans had formalized the seven-day week, integrating it into their calendar system. This structure, combining astronomical observations and religious traditions, eventually spread throughout the Roman Empire and beyond, becoming the foundation of the modern seven-day week we use today.

In the Arabic and Hebrew calendars, the day begins at sunset, which contrasts with the Swahili concept of the day starting at sunrise and the Western world, where the day starts at midnight. This highlights the cultural influences on how days are numbered and identified within these different calendrical systems.

Origins of days of the week

How did Monday get its name? Meaning of Monday

Monday is named after the Moon. The Old English word for Monday was ѴDzԲԻæ, which translates to "Moon's day". This naming convention is quite common across various languages; for instance, in Latin, it's dies Lunae, also meaning "day of the Moon".

Tuesday name origin

Tuesday is named after the Norse god (also known as Tyr), a god of war and sky. The Old English term վɱæ directly reflects this association. The connection to Mars, the Roman god of war, can also be seen in other languages, such as French (mardi).

Why is Wednesday called Wednesday?

Wednesday is named after (or Woden), the chief god in Norse mythology. The Old English ´ǻԱæ translates to "Woden's day". This day is associated with Mercury in Roman mythology, which is why it's called éDZ in Spanish and mercredi in French.

Thursday name meaning

Thursday is named in honor of , the Norse god of thunder. The term 'Thor's day' serves as the etymological basis for Thursday. In Old English, it was Þū԰æ (Thunor’s day). The link to Jupiter, the Roman king of gods and god of thunder, explains the name jeudi in French and jueves in Spanish.

Friday history and meaning

Friday is named after (also known as Frigga or Freya), the Norse goddess associated with love and beauty. The Old English term æ means "Frigg's day". In Roman mythology, this day is linked to Venus, the goddess of love, which is reflected in names like viernes in Spanish and vendredi in French.

Saturday name origin

Saturday is unique among the English day names as it retains its Roman origin, specifically named after the Roman god , the Roman god of wealth and time. The Old English æٱԱæ directly references this deity. Interestingly, in other Germanic languages, the name often refers to the Sabbath, such as Samstag in German.

Sunday - The sun's day

Sunday is named after the Sun. Icelandic uniquely retains 'only the Sun' as the name for Sunday, rejecting names derived from pagan gods. The Old English ܲԲԲԻæ translates to “Sun’s day”, reflecting its importance and reverence in various cultures. This name is consistent across many languages, highlighting the widespread significance of the Sun.

The importance of understanding day names etymology

Understanding the etymology of day names helps language learners grasp the historical context and deepens their appreciation of English. These names are more than just labels for days; they are windows into ancient beliefs, cultures and linguistic evolution. The influence of Greek and Latin names on the naming of the days of the week during the Greco-Roman tradition is particularly notable, as the classical planets from Hellenistic astrology played a significant role in this process.

Exploring the origins of the day names in English reveals a blend of mythology, history and language evolution. From the Moon to Norse gods to Roman deities, each name tells a story of cultural significance.

Read our blog posts 'Fantasy, the English language and Tolkien' and 'How the English language has changed over the decades'.

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  • A teacher stood at a table of students helping them

    Tips for keeping learners studying over the holiday season

    By Nicolas Chaparro
    Reading time: 3.5 minutes

    Nicolas Chaparro is a Colombian language teacher with a bachelor's degree in basic education, specializing in humanities and languages. After spending five years working as a systems technician, he discovered the potential of technology to enhance learning, which ignited his passion for dynamic, tech-driven education. He has the privilege of working at one of Colombia's most prestigious English institutions, where he currently leads a team focused on education, creativity and motivation.

    The holiday season is a magical time and the perfect moment to spark a teacher's creativity. I've always believed that learning a language isn't just about studying—it's about living it. As a learner, I loved the resources my teachers and institutions provided, but what truly captivated me was the opportunity to engage with the world using the language skills I had acquired.

    As a teacher, I strive to give my students that same experience. I didn't expect the holiday season to become the perfect setting to turn my teaching philosophy into reality. This blog post shares a personal story of how I used a creative activity to keep my students learning and practicing English during the holidays with the support of the Global Scale of English (GSE).

    The challenge I faced: Mixed levels and ages

    The activity I designed, Christmas Carols, presented two main challenges:

    1. Diverse proficiency levels: My group included students ranging from beginners to advanced learners, all participating in the same activity. I wanted to have them all working together; that's what language means to me.
    2. Varied age groups: The students also spanned different age ranges, which required an effective approach to engage everyone. It was a Christmas gathering meeting with all the institution's students.

    Basic students worked on identifying vocabulary that is similar to their native language and then used it in a short text. Intermediate students solved riddles to guess words that could be included in the lyrics. Advanced students completed questionnaires to build sentences and find synonyms to refine the text. The carol was divided into three sections: the first paragraph was for basic students, the second for intermediate students and the third for advanced students. I also included French students in the activity, which was designed for both languages.

    After the students completed their tasks in separate groups, I mixed them so they could explain the vocabulary they had learned to one another. To facilitate communication without relying on Spanish, I used pictures and Christmas props to help them express themselves visually.

    Finally, we all came together and sang the carol as one group.

    Turning challenges into opportunities with the GSE

    For me, a successful language activity needs three essential components: clear instructions, engaging resources and opportunities for interaction. With these principles in mind, I crafted an inclusive and dynamic activity, using the GSE to guide my planning.

    Step 1: Defining the goal

    I realized that most of my students didn't know specific Christmas-related vocabulary or any traditional English carols. This activity was also an opportunity to learn by myself and then share with them. This gap was my opportunity to introduce them to the holiday spirit in English.

    Step 2: Planning with the GSE

    I identified suitable goals for each proficiency level using the GSE Learning Objectives. These objectives helped me design tasks that targeted key skills—listening, speaking, reading and writing—while considering the ages and abilities of my students.

    Step 3: Preparing a scavenger hunt

    To make the activity interactive and fun, I organized a scavenger hunt. Students had to solve riddles and follow clues to find words essential for completing a Christmas song. The GSE objectives ensured that the tasks were appropriately challenging for each level.

    Step 4: Pairing students effectively

    Knowing my students well, I paired them strategically based on their proficiency and age. This pairing encouraged collaboration and allowed them to support each other throughout the activity.

    Making language visible and memorable

    One of my priorities was to make the language come alive. I brought visual aids like cards, games, and even a Christmas tree and a nativity scene—elements that most students recognized but had never explored in English. These visuals became valuable tools for teaching vocabulary in a tangible, engaging way.

    To add another layer of interaction, I used my guitar to sing along with the students. By the end of the activity, not only were we singing, but they also understood the meaning behind every word. Watching them take pride in their learning was incredibly rewarding and I knew this vocabulary wouldn't stop there; they would take it home and make it real for them, for the season, for their life.

    Reflections and an invitation

    This experience reminded me of the power of teaching through real-life experiences. Holidays provide a unique opportunity to teach without teaching and to help students study while living the language. Tools like the GSE make it easier for us as educators to plan meaningful and impactful activities.

    My invitation to fellow teachers is twofold:

    1. Explore the GSE resources to enrich your teaching strategies.
    2. Share your ideas and activities with the teaching community. Together, we can create opportunities for our students to use the language in real and virtual contexts that inspire learning and cooperation.

    Let's make 2025 the year we bring language to life in every classroom.