Is there a root word suffix or prefix for the ethnic?

There isn't a specific root word, suffix, or prefix that exclusively means "ethnic."

Here's why:

* "Ethnic" itself is a derived word from the Greek word "ethnos," meaning "nation" or "people."

* "Ethno-" is a prefix that means "nation" or "people" and is used to form words related to ethnicity, such as "ethnocentric" or "ethnography."

* "-ic" is a common suffix that can indicate "relating to" or "characteristic of," as seen in words like "historic," "economic," or "athletic."

Therefore, while "ethno-" is related to ethnicity, it's not a direct equivalent of the word "ethnic." To express "ethnic" in other contexts, you'd need to use descriptive phrases or terms that explicitly refer to ethnicity, such as "of a particular ethnic group," "ethnically diverse," or "ethnic background."