Meaning

noun a member of the nomadic peoples of Mongolia

adjective of or relating to the region of Mongolia or its people or their languages or cultures

originBorrowed from Classical Mongolian ᠮᠣᠩᠭᠣᠯ (mongɣol), from Middle Mongol ᠮᠣᠩᠬᠣᠯ (mongqol). The sense of person with Down syndrome stems from the observation that individuals with this condition frequently exhibit a prominent epicanthic fold, a feature commonly observed among individuals of East Asian ancestry.

Etymology from Wiktionary, CC BY-SA 3.0