The story
Coined by American psychologist Abraham Aaron Roback in 1944 from ethno- + Ancient Greek φαύλισμα (phaúlisma, “disparagement, contempt”), which is from φαῦλος (phaûlos, “bad, unjust”).
Etymology from Wiktionary, CC BY-SA 4.0.
ethnophaulism
Today it means: An ethnic or racial slur, typically caricaturing some identifiable (often physical) feature of the group being derided. Full definition →