Where does “крајник” come from?
крајник (Serbo-Croatian) comes from Serbo-Croatian кра̑ј, from Proto-Slavic krajь, from Proto-Slavic krojiti, from Proto-Balto-Slavic krájīˀtei, from Proto-Indo-European kroyh₁-eye-ti, from Proto-Indo-European kroyh₁-, from Proto-Indo-European kroh₁y-, from Proto-Indo-European kreh₁y- — to sift, to separate.
крајник (Serbo-Croatian): tonsil
Ancestry of “крајник”, step by step