Where does “Neptunism” come from?

Neptunism (English) comes from English Neptune, from Middle English Neptune, from Latin Neptūnus, from Proto-Italic neptūnos, from Proto-Indo-European nébʰos, from Proto-Indo-European -os — Creates action nouns or result nouns from verbs;...

Neptunism (English): A discredited scientific theory of geology, held by many scientists around the late 18th century and early 19th century, that rocks were formed from the crystallisation of minerals in the early Earth's oceans

Definitions

  1. A discredited scientific theory of geology, held by many scientists around the late 18th century and early 19th century, that rocks were formed from the crystallisation of minerals in the early Earth's oceans

Ancestry of “Neptunism”, step by step

StepLanguageWordMeaning
1EnglishNeptuneeighth planet in the solar system
2Middle EnglishNeptune
3LatinNeptūnusNeptune god of the sea
4Proto-Italicneptūnos
5Proto-Indo-Europeannébʰoscloud; mist, moisture
6Proto-Indo-European-osCreates action nouns or result nouns from verbs;...
Every word from Proto-Indo-European -osEvery word from Proto-Indo-European nébʰosEvery word from Proto-Italic neptūnos