Saturday Jan 18th, 2020

Origin of the names of the days of the week

We name them every day however we don't know very well the origin of why they are called that.

The names of the days of the week come from seven celestial objects that the ancient Mesopotamians saw moving in the sky (the 5 planets that at that time knew more about the sun and the moon), and the Romans adopted this measure by naming the days .

The Romans saw a connection between their gods and the night sky that was changing, according to the days, so they began to use their gods' names naturally for those satellites.

The word semana Comes from latin septimana (seven days).


The name of Monday comes from the Latin Dies lunae or day of the moon (Selene for the Greeks - Goddess of the moon).


It comes from the Latin Martis dies or day of Mars (Ares for the Greeks - god of war, as red as blood).


It comes from the Latin Mercurii dies or day of Mercury (Hermes for the Greeks - god of merchants, messenger of the gods, and planet that is closer to the sun).


It comes from the Latin Jovis dies, that is, Jupiter's day (Zeus for the Greeks - Father God, for being the second brightest).


It comes from the Latin Veneris dies which means Venus day (Aphrodite for the Greeks - goddess of beauty and love, for being the brightest planet).


It comes from the Latin Saturni dies by Saturn (Chronos for the Greeks - god of time, for being the slowest).


It began by calling dies Solis (day of the Sun), in which the word Solis referred to our star. It was linked to the god Apollo, one of the most important in the Roman pantheon after Jupiter.

With the arrival of Christianity on Sunday he stopped worshiping the Sun and went on to refer to the father of Jesus Christ: dies Dominicus (Lord's Day).

In Spanish, planetary names are maintained five days a week but in abbreviated form. Thus, Monday comes from the word moon, Tuesday (Mars), Wednesday (Mercury), Thursday (Jupiter) and Friday (Venus).

However, Saturday comes from the Hebrew word "Sabbat", referring to the day of rest (in Jewish and Christian tradition, God rested on the seventh day of its creation).

Curious fact:

Everything explained above is more reflected in the English language, such as the days:

  • Monday: Monday (Moon's Day).
  • Saturday: Saturday (Saturn's Day).
  • Sunday: Sunday (Sun's Day).

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