English

extraviolet

From extra- + violet.

Proto-Indo-European *h₁éǵʰs ‘out’

Proto-Indo-European *h₁eǵʰsteros

Proto-Italic *eksteros

Latin exter ‘being on the outside’

Latin extrā ‘outside, except, beyond’

Latin viola

Old French violette

Middle English violet

Today it means

adj ultraviolet

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

Etymograph / extraviolet