The story
- Proto-Indo-European*h₂el-
- Latinūls
- Latinultrā
- Englishultra-
- Proto-Indo-European*swenh₂-
- Proto-Indo-European*swónh₂os
- Latinsonus
- Englishsono-
- Proto-Indo-European*gerbʰ-
- Proto-Hellenic*grə́pʰō
- Ancient Greekγρᾰ́φω (grắphō)
- Ancient Greekγραφή (graphḗ)
- Englishsonography
- Englishultrasonography
- English todayultrasonographic
From ultrasonography + -ic.
Etymology from Wiktionary, CC BY-SA 4.0.