Where does “aborre” come from?

aborre (Old Swedish) comes from Proto-Indo-European h₂eḱ- — sharp.

Ancestry of “aborre”, step by step

aborre traces back through two separate lines of ancestry.

via Proto-Indo-European h₂eḱ-

StepLanguageWordMeaning
1Proto-Indo-Europeanh₂eḱ-sharp

via Proto-Germanic burzô

StepLanguageWordMeaning
1Proto-Germanicburzô
Every word from Proto-Indo-European h₂eḱ-