The story
- Ancient Greekβᾰθῠ́ς (băthŭ́s)
- Proto-Indo-European*skabʰ-
- Ancient Greekσκᾰ́πτω (skắptō)
- Ancient Greekσκᾰ́φη (skắphē)
- Frenchbathyscaphe
- English todaybathyscaphe
Borrowed from French bathyscaphe. Analyzable as bathy- + Ancient Greek σκάφη (skáphē, “little boat, skiff”).
Etymology from Wiktionary, CC BY-SA 4.0.