Where does “Сѫботинъ” come from?

Сѫботинъ (Church Slavonic) comes from Church Slavonic сѫбота, from Proto-Slavic sǫbota, from Hebrew שַׁבָּת, from Akkadian šapattum — 15.

Ancestry of “Сѫботинъ”, step by step

StepLanguageWordMeaning
1Church Slavonicсѫбота—
2Proto-SlavicsǫbotaSaturday
3HebrewשַׁבָּתSabbath, Shabbat; weekly day of rest; sabbath
4Akkadianšapattum15
Every word from Akkadian šapattum →Every word from Hebrew שַׁבָּת →Every word from Proto-Slavic sǫbota →