English

ethal

From ether + alcohol.

A compound of ether + alcohol

Anglo-Norman ether

Middle English ēther ‘the caelum aetherum of ancient cosmology in…’

English ether

Sumerian Sumerian form ‘kohl’

…

Aramaic כוחלא

Arabic كُحْل ‘kohl’

Medieval Latin alcohol

Middle English alcofol

Today it means

noun cetyl alcohol

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