regalia

plural noun

1. the ensigns or emblems of royalty, as the crown or scepter.
2. the decorations, insignia, or ceremonial clothes of any office or order.
3. rich, fancy, or dressy clothing; finery: guests wearing formal party regalia.
4. royal rights or privileges.

pl n (sometimes functioning as singular)

1. the ceremonial emblems or robes of royalty, high office, an order, etc
2. any splendid or special clothes; finery