Where does “kulmatetra” come from?

kulmatetra (Finnish) comes from Finnish Tetra, from English tetra, from Translingual Tetragonopterus, from Ancient Greek πτερόν, from Proto-Indo-European péth₂r̥, from Proto-Indo-European peth₂- — to spread out; to fly.

kulmatetra (Finnish): hockey-stick tetra, penguin tetra, blackline thayeria, blackline penguin fish, penguin fish, Thayeria boehlkei species of characin fish endemic to Brazil and Peru, popular as aquarium fish

Definitions

  1. hockey-stick tetra, penguin tetra, blackline thayeria, blackline penguin fish, penguin fish, Thayeria boehlkei species of characin fish endemic to Brazil and Peru, popular as aquarium fish

Ancestry of “kulmatetra”, step by step

kulmatetra traces back through two separate lines of ancestry.

via Finnish Tetra

StepLanguageWordMeaning
1FinnishTetraTetra Pak type of container
2EnglishtetraAny of numerous species of small South American...
3TranslingualTetragonopterus
4Ancient Greekπτερόνfeather; wing; Any winged creature
5Proto-Indo-Europeanpéth₂r̥wing; feather
6Proto-Indo-Europeanpeth₂-to spread out; to fly

via Finnish kuľma

StepLanguageWordMeaning
1Finnishkuľmacorner external point where two converging lines meet
Every word from Proto-Indo-European peth₂-Every word from Proto-Indo-European péth₂r̥Every word from Ancient Greek πτερόν