Nei Mongol

[ney]
Also Pinyin, Nei·meng·gu [ney-mœng-gy] /ˈneɪˈmœŋˈgü/; Nei Monggol [mong-gohl, mon-] /ˈmɒŋˈgoʊl, ˈmɒn-/.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018