Proto-Slavic *peťь

→ Belarusian печ (inherited)

→ Belarusian пячора (mention)

→ Bulgarian пещера (mention)

→ Czech pec (inherited)

→ Kashubian piec (inherited)

→ Old Church Slavonic пещь (inherited)

→ Old Church Slavonic пещера (mention)

→ Finnish pätsi (derived)

→ Macedonian печка (inherited)

→ Macedonian пештера (mention)

→ Old East Slavic печера (mention)

→ Polish piec (inherited)

→ Polish pieczara (mention)

→ Polabian pic (inherited)

→ Russian печь (inherited)

→ Russian пещь (derived)

→ Russian пещера (mention)

→ Russian печора (mention)

→ Serbo-Croatian пећ (inherited)

→ Serbo-Croatian peć (inherited)

→ Serbo-Croatian peč (inherited)

→ Slovak pec (inherited)

→ Slovene peč (inherited)

→ Ukrainian печера (mention)