Where does “виянрак” come from?

виянрак (Eastern Mari) comes from Eastern Mari виян, from Moksha вии, from Proto-Slavic vyjь.

Ancestry of “виянрак”, step by step

виянрак traces back through two separate lines of ancestry.

via Eastern Mari виян

StepLanguageWordMeaning
1Eastern Mariвиянstrong, powerful
2Mokshaвииstrong; powerful
3Proto-Slavicvyjь—

via Eastern Mari рак

StepLanguageWordMeaning
1Eastern Mariрак—
Every word from Proto-Slavic vyjь →Every word from Moksha вии →Every word from Eastern Mari виян →