Where does “ptyxis” come from?

ptyxis (New Latin) comes from Ancient Greek πτύξις, from Ancient Greek -σῐς, from Ancient Greek -τις, from Proto-Indo-European -tis — Derives abstract/action nouns from verb roots.

Ancestry of “ptyxis”, step by step

StepLanguageWordMeaning
1Ancient GreekπτύξιςA folding; a corrugation
2Ancient Greek-σῐς"suffix forming nouns"
3Ancient Greek-τιςretained after dentals
4Proto-Indo-European-tisDerives abstract/action nouns from verb roots

Words derived from “ptyxis”

Every word from Proto-Indo-European -tis →Every word from Ancient Greek -σῐς →Every word from Ancient Greek -τις →