English

extraordinal

From extra- + ordinal.

Proto-Indo-European *h₁éǵʰs ‘out’

Proto-Indo-European *h₁eǵʰsteros

Proto-Italic *eksteros

Latin exter ‘being on the outside’

Latin extrā ‘outside, except, beyond’

Latin ōrdō ‘order’

Latin ōrdinālis

Today it means

adj From another taxonomic order

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

Etymograph / extraordinal