Where does “U-crai-na” come from?
U-crai-na (Vietnamese) comes from Russian Украи́на, from Slavic Оукраина, from Old East Slavic краи, 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- — to sift, to separate.
Ancestry of “U-crai-na”, step by step