Mongolian эрхий

← Daur xereg (cognate)

← Even хөрэгэн (cognate)

← Khakas иргек (cognate)

← Proto-Turkic *erŋek (cognate)

← Proto-Tungusic *pȯre- (cognate)

← Proto-Mongolic *herekei (inherited)

→ Mongolian эрхийвч (suffix)