English
acridness
From acrid + -ness.
A compound of acrid + -ness
Proto-Indo-European *h₂eḱ- ‘sharp’
Proto-Indo-European *h₂eḱrós ‘sharp’
Proto-Italic *akris ‘sharp’
Latin ācer ‘sharp’
Latin ācris
English acrid
Today it means
noun Bitterness or acerbity.
Language periods are conventional ranges, not dates for this word.
Etymograph / acridness