Where does “pterion” come from?

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

pterion (English): The point corresponding with the posterior end of...

Definitions

The point corresponding with the posterior end of...

Ancestry of “pterion”, step by step

Step	Language	Word	Meaning
1	French	ptérion	—
2	Ancient Greek	πτερόν	feather; wing; Any winged creature
3	Proto-Indo-European	péth₂r̥	wing; feather
4	Proto-Indo-European	peth₂-	to spread out; to fly

Words derived from “pterion”

epipteric
pterionic
interpterion
pteria

Every word from Proto-Indo-European peth₂- →Every word from Proto-Indo-European péth₂r̥ →Every word from Ancient Greek πτερόν →