Ancient Greek Πρωτεύς

→ English protean (borrowed)

→ English Proteus (derived)

→ Catalan Proteu (derived)

→ Esperanto Proteo (derived)

→ Italian Proteo (derived)

→ Translingual Protea (derived)

→ Translingual Proteus (derived)

→ Translingual proteo- (derived)

→ Portuguese Proteu (derived)