English
antiallergic
From anti- + allergic.
Proto-Indo-European *h₂ent- ‘forehead’
Proto-Indo-European *h₂énts ‘forehead’
Proto-Indo-European *h₂énti ‘opposite’
Ancient Greek ᾰ̓ντῐ́ ‘over against, opposite’
English anti-
Today it means
adj That prevents, or relieves an allergy
Language periods are conventional ranges, not dates for this word.
Etymograph / antiallergic