Where does “apsis” come from?

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

apsis (Latin): arch, vault

Definitions

  1. arch, vault

Ancestry of “apsis”, step by step

StepLanguageWordMeaning
1Ancient Greekἁψίςnet, mesh; wheel, hoop, disc; Any curved form:...
2Ancient Greek-σῐς"suffix forming nouns"
3Ancient Greek-τιςretained after dentals
4Proto-Indo-European-tisDerives abstract/action nouns from verb roots

Words derived from “apsis”

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