Where does “samedi” come from?

samedi (Franco-Provençal) comes from French samedi, from Old French samedi, from Vulgar Latin sambatum, from Vulgar Latin sambati dies, from Latin Sabbatī diēs, from Latin Sabbatum, from Ancient Greek σάββατον, from Aramaic שַׁבְּתָא — 15.

Ancestry of “samedi”, step by step

StepLanguageWordMeaning
1FrenchsamediSaturday
2Old FrenchsamediSaturday
3Vulgar LatinsambatumSaturday, the Sabbath
4Vulgar Latinsambati dies
5LatinSabbatī diēs
6LatinSabbatumSabbath (the Jewish day of rest, i.e., the biblical seventh day of the week)
7Ancient GreekσάββατονSabbath
8Aramaicשַׁבְּתָאsabbath
9HebrewשַׁבָּתSabbath, Shabbat; weekly day of rest; sabbath
10Akkadianšapattum15
Every word from Akkadian šapattumEvery word from Hebrew שַׁבָּתEvery word from Aramaic שַׁבְּתָא