French classe

← Latin classis (learned borrowing)

→ Gulf Arabic كلاس (derived)

→ Bulgarian клас (borrowed)

→ German Klasse (derived)

→ Esperanto klaso (derived)

→ Persian کلاس (borrowed)

→ French classification (suffix)

→ French classifier (suffix)

→ French infraclasse (affix)

→ French interclasse (prefix)

→ French classisme (affix)

→ Ido klaso (derived)

→ Latvian klase (derived)

→ Dutch klas (borrowed)

→ Dutch klasse (borrowed)

→ Romanian clasă (borrowed)

→ Vilamovian klass (borrowed)