English

antediluvial

Early 18th c., ante- + diluvial, possibly as alteration of earlier antediluvian.

Proto-Indo-European *h₂ent- ‘forehead’

Proto-Indo-European *h₂énts ‘forehead’

Proto-Indo-European *h₂énti ‘opposite’

Proto-Italic *anti ‘before’

Latin ante ‘of space. in front, before, forwards’

English ante-

Late Latin dīluviālis

Today it means

adj Of or pertaining to a time before Noah's flood.

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

Etymograph / antediluvial