Czech Václav

← Proto-Slavic *Vęťeslavъ (derived)

← Proto-Slavic *vęťьjь (mention)

← Proto-Slavic *slava (mention)

← Old Czech Vácslav (derived)

→ English Vacek (mention)

→ Czech václavský (affix)

→ Polish Wacław (borrowed)

→ Slovak Václav (borrowed)