Where does “Sabbatharian” come from?

Sabbatharian (English) comes from English Sabbath, from Middle English sabat, from Old English Sabat, from Latin Sabbatum, from Ancient Greek σάββατον, from Aramaic שַׁבְּתָא, from Hebrew שַׁבָּת, from Akkadian šapattum — 15.

Ancestry of “Sabbatharian”, step by step

Sabbatharian traces back through two separate lines of ancestry.

via English Sabbath

StepLanguageWordMeaning
1EnglishSabbathSaturday, observed in Judaism and some Christian...
2Middle Englishsabat
3Old EnglishSabatthe Sabbath
4LatinSabbatumSabbath (the Jewish day of rest, i.e., the biblical seventh day of the week)
5Ancient GreekσάββατονSabbath
6Aramaicשַׁבְּתָאsabbath
7HebrewשַׁבָּתSabbath, Shabbat; weekly day of rest; sabbath
8Akkadianšapattum15

via English Arian

StepLanguageWordMeaning
1EnglishArianA disciple of the Amazigh monk Arius, presbyter...
2Late LatinArianus
3Ancient GreekἌρειοςdevoted to Ares; pertaining to Ares
4Ancient GreekἌρηςAres; the planet Mars; {{l|en|Ares}}
5Ancient Greekἀρήbane, ruin
Every word from Akkadian šapattum