Bulgarian съюз

← Bulgarian въз (cognate)

← Bulgarian възе (mention)

← Old Church Slavonic съѭзъ (derived)

← Old Church Slavonic съвѫзъ (cognate)

← Latin coniūnctiō (cognate)

← Russian сою́з (borrowed)

← Proto-Slavic *ǫzъ (cognate)

→ Bulgarian въз (link)