Etymograph

English

fluorone

From fluor- + -one.

Formed from fluor + one

Latin fluō ‘to flow, stream, pour’

Latin fluor ‘flow’

English fluor

Proto-Indo-European *h₁óynos ‘single’

Proto-Germanic *ainaz ‘one’

Proto-West Germanic *ain ‘one’

Old English ān ‘one’

Middle English oon

English one

Today it means

noun A tricyclic heterocyclic ketone that is the basis of a class of synthetic dyestuffs.

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

Etymograph / fluorone