Proto-Indo-European *bʰerHǵos

→ English birch (inherited)

→ Bulgarian бреза (inherited)

→ Catalan freixe (inherited)

→ Spanish fresno (inherited)

→ French frêne (inherited)

→ Galician freixo (mention)

→ Westrobothnian bjerk (inherited)

→ Italian frassino (inherited)

→ Latin farnus (derived)

→ Macedonian бреза (inherited)

→ Norwegian Bokmål bjerk (inherited)

→ Ossetian бӕрз (inherited)

→ Portuguese freixo (inherited)

→ Romanian frasin (inherited)

→ Romanian breaz (derived)

→ Serbo-Croatian бреза (inherited)

→ Ukrainian береза (inherited)