The story
- Proto-Indo-European*swé
- Proto-Indo-European*dʰeh₁-
- Proto-Indo-European*swe-dʰh₁-
- Proto-Hellenic*séswōtʰa
- Ancient Greekἔθω (éthō)
- Ancient Greekἔθνος (éthnos)
- Englishethno-
- Proto-Indo-European*kʷelh₁-
- Proto-Indo-European*kʷélh₁eti
- Proto-Italic*kʷelō
- Latincolō
- Latincultūra
- Middle Frenchculture
- Englishculture
- Proto-Indo-European*h₂el-
- Proto-Indo-European*h₂élisder.?
- Englishcultural
- Englishethnocultural
- Proto-Indo-European*leyg-
- Proto-Germanic*līką
- English todayethnoculturally
From ethnocultural + -ly.
Etymology from Wiktionary, CC BY-SA 4.0.