Where does “Jurmała” come from?

Jurmała (Polish) comes from Latvian Jūrmala, from Latvian jūra, from Proto-Balto-Slavic jaur-.

Ancestry of “Jurmała”, step by step

StepLanguageWordMeaning
1LatvianJūrmalaRiga; Jūrmala
2Latvianjūrasea; very large quantity or amount
3Proto-Balto-Slavicjaur-—
Every word from Proto-Balto-Slavic jaur- →Every word from Latvian jūra →Every word from Latvian Jūrmala →