Where does “Las Vegas” come from?

Las Vegas (Polish) comes from English Las Vegas, from Spanish las vegas — the fertile meadows; the meadows.

Ancestry of “Las Vegas”, step by step

StepLanguageWordMeaning
1EnglishLas Vegasknown for its large hotels, extravagant entertainment and dining, and gambling
2Spanishlas vegasthe fertile meadows; the meadows
Every word from Spanish las vegasEvery word from English Las Vegas