Proto-Slavic *vojь

→ Belarusian войска (mention)

→ Bulgarian война (mention)

→ Bulgarian вой (inherited)

→ Old Church Slavonic воинъ (inherited)

→ Old Church Slavonic вои (inherited)

→ Hungarian vajda (mention)

→ Polish wojsko (derived)

→ Polish Wojciech (mention)

→ Polish woj (inherited)

→ Romanian zăvoi (derived)

→ Russian война (mention)

→ Russian военный (mention)

→ Russian вой (inherited)

→ Russian войско (mention)

→ Russian воевать (cognate)

→ Serbo-Croatian vojska (derived)

→ Serbo-Croatian војска (derived)

→ Ukrainian воєнний (mention)