/ ˈdeɪkɔː(r); NAmE deɪˈkɔːr/ noun
[ U , C , usually sing. ] the style in which the inside of a building is decorated :
the restaurant's elegant new decor
late 19th cent.: from French décor , from the verb décorer , from Latin decorare embellish, from decus , decor- beauty, honour, or embellishment.