Where does “Maariu” come from?

Maariu (Greenlandic) comes from Danish Marius, from Latin marius — The name of a Roman gens.

Ancestry of “Maariu”, step by step

StepLanguageWordMeaning
1DanishMarius
2LatinmariusThe name of a Roman gens
Every word from Latin mariusEvery word from Danish Marius