Latin excūsāre

→ Catalan excusar (derived)

→ Spanish excusar (derived)

→ Spanish escusar (inherited)

→ French excuser (borrowed)

→ Galician escusar (inherited)

→ Ido exkuzar (derived)

→ Italian scusare (inherited)

→ Occitan excusar (derived)

→ Portuguese escusar (inherited)