Xenos is outsiders or foreigners. Barbaros means barbarians. :P
Outsider
For an outsider is: "αλλοδαπος" (alodapos), "ξένος" (ksenos). For an uncivilized person is: "απολίτιστος" (apoleeteestos), "βάρβαρος" (varvaros)
Barbarians
for uncivilized people is βάρβαροι (barbari- barbarians) for slaves is σκλάβος (sklabos)
βάρβαροι [varvari] = barbarians
The ancient Greeks used the word βάρβαρος (barbaros/barbarian) for uncivilized people. Actually they used it for all non-greek cultures.
Greek
outsider = ξένος (ZEN-ohs), written in English: Xenos
Lack of culture led the people to become uncivilized.
The Hawaiian word for outsider is "malihini."
The word "barbarian" comes from the Latin word "barbarus," which originally referred to non-Greek speakers who were considered uncivilized or primitive. It was later adopted into English and various other languages to refer to people perceived as uncultured or savage.
Barbarian.
the word is barbaric and it means uncivilized