[throwaway6734]

>It could easily have been Turkish or Arabic too!

Yep, during the rise of Islam, they caliphate almost captured Constantinople and could've ended up pushing into Europe had they been successful. They eventually made it into Spain and Sicily.

Its also possible that had the Persians or Byzantines been able to defeat the caliphate early, we might consider a good chunk of the middle east and north Africa to be "European".