Where does “eustasy” come from?

eustasy (English) comes from English eustatic, from German eustatische, from Ancient Greek εὖ, from Ancient Greek ἐΰς, from Proto-Hellenic ehu-, from Proto-Indo-European h₁su-, from Proto-Indo-European h₁wes- — good; to be cheerful, happy; to eat, to feast.

eustasy (English): A worldwide change in sea level, especially one...

Definitions

  1. A worldwide change in sea level, especially one...

Ancestry of “eustasy”, step by step

StepLanguageWordMeaning
1EnglisheustaticOf or pertaining to eustasy
2Germaneustatische—
3Ancient Greekεὖwell
4Ancient Greekἐΰςgood, brave, noble
5Proto-Hellenicehu-good
6Proto-Indo-Europeanh₁su-good
7Proto-Indo-Europeanh₁wes-good; to be cheerful, happy; to eat, to feast

Words derived from “eustasy”

Every word from Proto-Indo-European h₁wes- →Every word from Proto-Indo-European h₁su- →Every word from Proto-Hellenic ehu- →