From Classical Mongolian ᠮᠢᠨ᠋ᠤᠬᠡᠢ (minukei), from Middle Mongol [Term?]; equivalent to миний (minii, “my”) + -х (-x).
минийх • (miniix) (Mongolian spelling ᠮᠢᠨ᠋ᠤᠬᠢ (minuki))