English

idele

Blend of ideal + element; coined by Claude Chevalley.

Latin idea ‘idea’

Late Latin ideālis ‘existing in idea’

French idéal

English ideal

Latin elementum ‘a first principle’

Old French element

Middle English element

The story

Blend of ideal + element; coined by Claude Chevalley.

noun An invertible element of the adele ring.

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