Where does “Miriam” come from?

Miriam (Portuguese) comes from Hebrew מִרְיָם, from Aramaic מרים, from Biblical Hebrew מִרְיָם.

Ancestry of “Miriam”, step by step

Step	Language	Word	Meaning
1	Hebrew	מִרְיָם	—
2	Aramaic	מרים	bitter
3	Biblical Hebrew	מִרְיָם	—

Miriam — Etymology, Origin & Word History | Etymology Explorer