Mongolian

This term functions as both a proper adjective and a proper noun. When used as an adjective, it describes anything originating from or related to the nation of Mongolia, its ethnic groups, or its cultural heritage. When used as a noun to describe a person, it follows standard countability rules for nationalities.

As a noun referring to the language, the word is uncountable. It is always capitalized regardless of its grammatical role, as it is derived from the proper name of a country and an ethnic group.