←
Estonian piir (cognate)
←
Finnish piiri (cognate)
←
Proto-Finnic *piiri (inherited)
←
Komi-Zyrian бор (cognate)
←
Northern Sami birra (cognate)
←
Kildin Sami пырр (cognate)
←
Inari Sami pirrâ (cognate)
←
Proto-Uralic *pire (inherited)
→
Estonian piir (cognate)