One Piece Chapter 51, page 14-15: Roronoa Zoro Falls Into the Sea

Mihawk stares at Zoro, saying, "Yes, such is defeat." Zoro smiles weakly, replying, "Haha... then that's why I can't step back." Mihawk asks, "Even if it means your death...?" Zoro answers resolutely, "I'd much rather die." Mihawk is deeply moved by Zoro's incredible resolve, thinking, "What conviction he possesses! To rather choose death than defeat..." Mihawk pulls his dagger out of Zoro's chest with a wet sound and says, "Kid... tell me your name.

Zoro stands tall, raising his swords as he pants, "Roronoa Zoro." Mihawk smiles with respect and reaches for the massive hilt on his back. He declares, "I shall remember it, and to pay my respect to you as a fellow swordsman, I shall end this duel with my Black Sword, the world's strongest sword. For your strength is not often seen in this world." A translator's note at the top of the panel explains: "tl note: black sword is kokutou in japanese.