English

antialkaline

From anti- + alkaline.

Proto-Indo-European *h₂ent- ‘forehead’

Proto-Indo-European *h₂énts ‘forehead’

Proto-Indo-European *h₂énti ‘opposite’

Ancient Greek ᾰ̓ντῐ́ ‘over against, opposite’

English anti-

Arabic اَلْقِلْي ‘alkali, ashes of the saltwort’

Today it means

adj That counters alkalinity

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

Etymograph / antialkaline