List of common nouns derived from ethnic group names
This is a list of common nouns, used in the English language, whose etymology goes back to the name of some, often historical or archaic, ethnic or religious group, but whose current meaning has lost that connotation and does not imply any actual ethnicity or religion. Several of these terms are derogatory or insulting.
Source: Wikipedia — List of common nouns derived from ethnic group names (CC BY-SA 4.0)