From Wiktionary, the free dictionary
From Middle Mongol ᠮᠠᠩᠯᠠᠢ (manglai, “forehead”), see Mongolian магнай (magnaj).
маҥдай • (maŋday)
- forehead
- N. A. Baskakov, Toščakova N.A, editor (1947), “маҥдай”, in Ojrotsko-Russkij Slovarʹ [Oyrot-Russian Dictionary], Moscow: M.: OGIZ, →ISBN