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ethnonym

n. The name of an ethnic group.

Wikipedia
Ethnonym

An ethnonym (from the , éthnos, "nation" and , ónoma, "name") is the name applied to a given ethnic group. Ethnonyms can be divided into two categories: exonyms (where the name of the ethnic group has been created by another group of people) and autonyms or endonyms (self-designation; where the name is created and used by the ethnic group itself).

As an example, the ethnonym for the ethnically dominant group in Germany is the Germans. This ethnonym is an exonym used by the English-speaking world, although the term itself is derived from Latin. Conversely, Germans themselves use the autonym of die Deutschen. Germans are indicated by exonyms in many European languages, such as French (Allemands), Italian (tedeschi), Swedish (tyskar) and Polish (Niemcy).