Belarusian пячора

← Old East Slavic печера (inherited)

← Russian печо́ра (cognate)

← Proto-Slavic *peťera (inherited)

← Proto-Slavic *peťь (mention)

← Proto-Slavic *-era (mention)

← Proto-Slavic *peťi (mention)

← Proto-Slavic *-tь (mention)