Where does “sosna” come from?

sosna (Old Czech) comes from Proto-Slavic sosna, from Proto-Indo-European ḱesn-.

Ancestry of “sosna”, step by step

StepLanguageWordMeaning
1Proto-Slavicsosnapine tree
2Proto-Indo-Europeanḱesn-—

Words derived from “sosna”

Every word from Proto-Indo-European ḱesn- →Every word from Proto-Slavic sosna →
sosna — Etymology, Origin & Word History | Etymology Explorer