Esperanto ĉaŭ

← English Slav (mention)

← English slave (mention)

← Italian ciao (borrowed)

← Italian schiavo (mention)

← Latin sclavus (mention)

← Latin Sclavonia (mention)

← Venetian ciao (mention)

← Venetian s-ciao (mention)

← Venetian s-ciavo (mention)

← Venetian S-ciavón (mention)