From Proto-Mongolic *jöge, compare Mongolian зөгий (zögii), Buryat зүгы (zügy).
зөг • (zög) (Clear script spelling ᠴᡈᡎ (čᡈᡎ) or ᠴᡈᡎᡉᡅ (čᡈᡎᡉᡅ), plural зөгмүд)