Ru
Short form of Rupert, Rudy, or Ruben, variation of Rue, variation of Ruadh, or Chinese
"bright flame; famous wolf; regret, herb; red; scholar"
Succinct but playful, the unisex and multicultural Ru fits in with the likes of Tru, Cru, Blu, and Bo. Typically used as a short form of Ruben, Rudy or Ruben, it might also be a form of the word name…