Proto-Slavic *buky

→ English azbuka (mention)

→ English buky (derived)

→ Belarusian буква (inherited)

→ Bulgarian буква (inherited)

→ Old Church Slavonic боукꙑ (inherited)

→ Macedonian буква (inherited)

→ Old East Slavic бꙋкꙑ (inherited)

→ Polish bukiew (inherited)

→ Polish bukwa (derived)

→ Romanian bucvariu (derived)

→ Russian буква (inherited)

→ Russian бук (inherited)

→ Serbo-Croatian буква (inherited)

→ Serbo-Croatian bukva (inherited)

→ Slovene bukev (inherited)

→ Ukrainian буква (derived)