adjective/aˈθeɾbo/
acerb (bitter to the taste); acerbic (sour or bitter); biting, scathing, acerbic
Etymology tree Proto-Indo-European *h₂eḱ- Proto-Indo-European *-rós Proto-Indo-European *h₂eḱrós Proto-Italic *akris Proto-Indo-European *dʰeh₁- Proto-Indo-European *-dʰh₁-os Proto-Italic *-iðos Proto-Italic *akriðos Latin acerbusbor. Spanish acerbo Borrowed from Latin acerbus.