English
acerbically
From acerbic + -ally.
A compound of acerbic + -ally
Proto-Indo-European *h₂eḱ- ‘sharp’
Proto-Indo-European *h₂eḱrós ‘sharp’
Proto-Italic *akris ‘sharp’
Proto-Italic *akriðos
Latin acerbus ‘sour, bitter’
English acerbic
Today it means
adv sourly; bitterly
Language periods are conventional ranges, not dates for this word.
Etymograph / acerbically