The name is absurdly literal. "Sanjuro" means "30-year-old," and "Kuwabatake" means "mulberry field." He adds that he is "pushing forty," a dry joke often preserved in subtitles to highlight his cynical, improvisational nature. Translating the Title
If you are looking for the most "deep" or accurate translation, various home media releases offer different takes: Yojimbo subtitles English
Often used for theatrical screenings, these tend to be concise to keep up with the film's fast-paced action. Yojimbo / Sanjuro (1961 & 62) - Audiophile Audition The name is absurdly literal
English subtitles typically render this as "Kuwabatake Sanjuro" and often provide a parenthetical or adjacent translation: "Thirty-year-old Mulberry Field" . Yojimbo subtitles English