English duel

← Proto-Indo-European *dāu- (derived)

← Proto-Indo-European *dəu- (mention)

← Proto-Indo-European *dū- (mention)

← Old Latin duellum (derived)

← Latin duo (derived)

← Latin bellum (cognate)

→ English dueler (suffix)

→ English duelist (suffix)

→ English duello (doublet)

→ English outduel (prefix)

→ English truel (blend)

→ English duelsome (suffix)

→ Japanese デュエル (borrowed)

→ Portuguese duelo (link)

→ Portuguese duelo (link)