Where does “Jablonský” come from?

Jablonský (Slovak) comes from Czech jabloň, from Old Czech jablon, from Proto-Slavic ablonь, from Proto-Indo-European h₂ébōl — apple.

Ancestry of “Jablonský”, step by step

StepLanguageWordMeaning
1Czechjabloňapple tree, apple
2Old Czechjablon—
3Proto-Slavicablonьapple-tree
4Proto-Indo-Europeanh₂ébōlapple
Every word from Proto-Indo-European h₂ébōl →Every word from Proto-Slavic ablonь →Every word from Old Czech jablon →