Where does “שבֿע” come from?

שבֿע (Yiddish) comes from Hebrew בַּת שֶׁבַע, from Hebrew בַּת — daughter.

Ancestry of “שבֿע”, step by step

Step	Language	Word	Meaning
1	Hebrew	בַּת שֶׁבַע	daughter of an oath
2	Hebrew	בַּת	daughter

שבֿע — Etymology, Origin & Word History | Etymology Explorer