Old Prussian berse

← Proto-Balto-Slavic *berźas (derived)

← Proto-Balto-Slavic *berźā (mention)

← Proto-Indo-European *bʰerHǵs (derived)

← Lithuanian béržas (cognate)

← Latvian bērzs (cognate)

← Latvian bērze (mention)

← Proto-Slavic *berza (cognate)

→ Lithuanian beržas (cognate)

→ Latvian bērzs (cognate)