Proto-Slavic *bolь

→ Belarusian боль (inherited)

→ Czech bol (inherited)

→ Old Church Slavonic боль (inherited)

→ Lower Sorbian ból (inherited)

→ Upper Sorbian ból (inherited)

→ Macedonian бол (inherited)

→ Old East Slavic боль (inherited)

→ Polish ból (inherited)

→ Polish boleć (inherited)

→ Romanian boală (mention)

→ Romanian bolniță (affix)

→ Russian боль (inherited)

→ Serbo-Croatian bol (inherited)

→ Serbo-Croatian бол (inherited)

→ Albanian bolbë (mention)

→ Ukrainian біль (inherited)