The story
- Ancient Greek · derived fromτετράγωνος“square, quadrilateral”
- English todaytetra
From translingual Tetragonopterus, an obsolete genus that included these fish, ultimately from Ancient Greek τετράγωνος (tetrágōnos, “square, quadrilateral”) + πτερόν (pterón, “wing, fin”).
Words from the same roots
Ancient Greekτετράγωνος all →
tetragon
Etymology from Wiktionary, CC BY-SA 4.0.