Origin# From Proto-Mongolic *herekei, compare Daur xereg.
# Likely somehow related to Proto-Turkic *erŋek, compare Khakas иргек (irgek).
# Also might be related to Proto-Tungusic *pore, compare Even хөрэгэн (hörəgən), Manchu ᡶᡝᡵᡥᡝ (ferhe).
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Formsэрхий •(canonical) · erxii(romanization) · ᠡᠷᠡᠬᠡᠢ(Mongolian)