Where does “אחשורוש” come from?

אחשורוש (Yiddish) comes from Hebrew אֲחַשְׁוֵרוֹשׁ, from Old Persian 𐎧𐏁𐎹𐎠𐎼𐏁𐎠, from Old Persian *(w)r̥šā.

Ancestry of “אחשורוש”, step by step

Step	Language	Word	Meaning
1	Hebrew	אֲחַשְׁוֵרוֹשׁ	—
2	Old Persian	𐎧𐏁𐎹𐎠𐎼𐏁𐎠	ruler among kings
3	Old Persian	*(w)r̥šā	—

אחשורוש — Etymology, Origin & Word History | Etymology Explorer