adjective / noun
ethnic
ETH-nik/ˈeθnɪk/
Relating to or belonging to a group with shared ancestry or culture.
She shares a Punjabi embroidered textile that reflects her ethnic heritage.

Etymology
Ethnos meant a people or nation, making ethnic originally about what belongs or is peculiar to a people. The modern cultural sense returns to that idea after an earlier English meaning of “pagan.”
In context
it's a traditional african society modeled on the namibian ethnic group that you might be familiar with
More examples
- Several ethnic groups celebrate their traditions at the community festival.
- The survey asks about each person's ethnic background.
- The organization works to prevent ethnic discrimination in hiring.
Forms
ethnic · ethnics
ethnicity noun — Identity based on shared ancestry or culture.
ethnically adverb — In terms of ancestry or cultural identity.