The story
- Mongolian · derived fromМонгол
- English todayNei Mongol
A partial romanization of the Mandarin term 內蒙古／内蒙古 (Nèi Měnggǔ, literally “Nei Menggu”): the Mandarin term 內／内 (nèi) (inner, inside, internal) + Mongol (romanization of Mongolian Монгол (Mongol)/ᠮᠣᠩᠭᠣᠯ (mongɣol))
Etymology from Wiktionary, CC BY-SA 4.0.