Etymology

Saturday

Sat·ur·day
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Today it means: The seventh day of the week in many religious traditions, and the sixth day of the week in systems using the ISO 8601 norm; the Jewish Sabbath; it follows Friday and precedes Sunday. Full definition →

Middle English Saterday ← Old English sæterdæġ ← Proto-West Germanic *Sāturnas dag
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The story

  1. Latin · derived fromdiēs Saturnī
  2. Proto-West Germanic · inherited from*Sāturnas dag
  3. Old English · inherited fromsæterdæġ
  4. Middle English · inherited fromSaterday
  5. English todaySaturday

From Middle English Saterday, from Old English sæterdæġ, earlier sæternesdæġ (“Saterday”, literally “Saturn's day”), from Proto-West Germanic *Sāturnas dag; a translation of Latin diēs Saturnī, equivalent to Saturn + day. Compare West Frisian saterdei (“Saturday”), Dutch zaterdag (“Saturday”), German Low German Saterdag (“Saturday”).

Etymology from Wiktionary, CC BY-SA 4.0.