They can be Words of Catalan meaning waiter, boy, young, mozuelo, recruit and their respective females. They can also be Words of the Italian language and mean moved, move, run.
It's not Spanish but Catalan. See Catalan/Mosso ( "Mozo, young, recruit" ).
MOSSO , A contraction of mosso d'Esquadra or Catalan police Some synonyms, words or similar expressions can be mosso d 39 , esquadra , police