Where does “Morava” come from?

Morava (Italian) comes from Czech Morava, from Latin Marus, from Proto-Indo-European móri, from Proto-Indo-European mer- — to die; to disappear; sea, lake, wetland.

Ancestry of “Morava”, step by step

StepLanguageWordMeaning
1CzechMorava
2LatinMarusA river that flows into the Danube, probably the Morava
3Proto-Indo-Europeanmórisea; standing water
4Proto-Indo-Europeanmer-to die; to disappear; sea, lake, wetland
Every word from Proto-Indo-European mer-Every word from Proto-Indo-European móriEvery word from Latin Marus