Spanish (Limón): from Spanish limón 'lemon', hence possibly an occupational name for a grower or seller of the fruit. English: variant of Lemon. French: habitational name from Limon in Nièvre, Limont-Fontaine in Nord, or Limont in the Belgian province of Liège.
Luz is a Spanish and Portuguese feminine given name and surname, meaning light. The given name is shortened from Nuestra Señora de la Luz, a Roman Catholic epithet of the Virgin Mary as "Our Lady of Light".