köken: Etymology tree Proto-Indo-European *bʰe Proto-Indo-European *h₁éǵʰ Proto-Indo-European *-s Proto-Indo-European *-ǵʰs Proto-Balto-Slavic *beź Proto-Slavic *bez(ъ) Proto-Slavic *bez- Old Polish bez- Polish bez- Polish przewodowy Polish bezprzewodowy From bez- + przewodowy. First attested in 1912, but in common usage only as of 1944.