Where does “tetranucleate” come from?

tetranucleate (English) comes 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.

Ancestry of “tetranucleate”, step by step

tetranucleate traces back through two separate lines of ancestry.

via English tetra

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

via English nucleate

StepLanguageWordMeaning
1EnglishnucleateHaving a nucleus; nucleated; To form a nucleus,...
Every word from Proto-Indo-European peth₂-Every word from Proto-Indo-European péth₂r̥Every word from Ancient Greek πτερόν