cacophony

The story

1. Ancient Greekκᾰκός (kăkós)
2. Ancient Greekκακο- (kako-)
3. Proto-Indo-European*bʰeh₂-
4. Proto-Hellenic*pʰōnā́
5. Ancient Greekφωνή (phōnḗ)
6. Ancient Greekκᾰκόφωνος (kăkóphōnos)
7. Ancient Greekκᾰκοφωνῐ́ᾱ (kăkophōnĭ́ā)
8. Frenchcacophonie
9. English todaycacophony

From French cacophonie, from Ancient Greek κακοφωνία (kakophōnía), from κακός (kakós, “bad”) + φωνή (phōnḗ, “sound”), equivalent to caco- + -phony.