Where does “سبت” come from?

سبت (Malay) comes from Hebrew שַׁבָּת, from Akkadian šapattum.

Ancestry of “سبت”, step by step

Step	Language	Word	Meaning
1	Hebrew	שַׁבָּת	Sabbath, Shabbat; weekly day of rest; sabbath
2	Akkadian	šapattum	—