Family name origins & meanings
- Catalan (Delós or Delòs) : Catalan variant of d’Alós or d’Alòs, two habitational names from any of the towns named with those words, as for example Alós d’Isil (in the district of El Pallars) or Alòs de Balaguer (in the district of La Noguera), in Catalonia.
- French : habitational name denoting someone from either of two places named Loos, in Nord and Pas-de-Calais.