Proto-Slavic *peťera

→ Belarusian пячора (inherited)

→ Bulgarian пещера (inherited)

→ Old Church Slavonic пещера (derived)

→ Macedonian пештера (inherited)

→ Old East Slavic печера (inherited)

→ Polish pieczara (mention)

→ Romanian peșteră (derived)

→ Russian пещера (derived)

→ Russian печора (inherited)

→ Aromanian pishtireauã (derived)

→ Ukrainian печера (inherited)