Etymograph

English

ethanium

From ethane + -ium.

A compound of ethane + -ium

Ancient Greek ῡ̔́λη ‘wood’

German Ethy

English ethyl

English ethane

Today it means

noun the carbocation, C₂H₇⁺, derived by the protonation of ethane

Language periods are conventional ranges, not dates for this word.

Etymograph / ethanium