Where does “apterium” come from?

apterium (English) comes from Ancient Greek πτερόν, from Proto-Indo-European péth₂r̥, from Proto-Indo-European peth₂- — to spread out; to fly.

apterium (English): An area of bare skin on a bird

Definitions

  1. An area of bare skin on a bird

Ancestry of “apterium”, step by step

StepLanguageWordMeaning
1Ancient Greekπτερόνfeather; wing; Any winged creature
2Proto-Indo-Europeanpéth₂r̥wing; feather
3Proto-Indo-Europeanpeth₂-to spread out; to fly
Every word from Proto-Indo-European peth₂- →Every word from Proto-Indo-European péth₂r̥ →Every word from Ancient Greek πτερόν →