English
antacrid
From anti- + acrid.
Proto-Indo-European *h₂ent- ‘forehead’
Proto-Indo-European *h₂énts ‘forehead’
Proto-Indo-European *h₂énti ‘opposite’
Ancient Greek ᾰ̓ντῐ́ ‘over against, opposite’
English anti-
Proto-Indo-European *h₂eḱ- ‘sharp’
Proto-Indo-European *h₂eḱrós ‘sharp’
Proto-Italic *akris ‘sharp’
Latin ācer ‘sharp’
Latin ācris
English acrid
Today it means
adj Serving to correct acridness of the humours.
Language periods are conventional ranges, not dates for this word.
Etymograph / antacrid