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*gerbʰ-
- Proto-Hellenic*grə́pʰō
- Ancient Greekγρᾰ́φω (grắphō)
- Ancient Greekγραφή (graphḗ)
- Englishethnography
- English todayethnographic
From ethnography + -ic.
Etymology from Wiktionary, CC BY-SA 4.0.