regalia
n. uncountablen. the special clothes and decorations that people wear to show they have a high rank or are part of a special group. You often see this at university graduation ceremonies or for judges and kings.
n. the distinctive clothing, insignia, and other symbols of office or rank worn by members of a specific group or during a formal ceremony.
The graduates wore their ceremonial regalia for the photo.
The university president arrived in full regalia, including the velvet robe and the heavy gold chain.
While the modern ceremony is largely symbolic, the preservation of traditional regalia remains a point of pride for the institution, reflecting centuries of academic heritage and hierarchy.
From Middle English regalie, from Medieval Latin rēgālia (“royal powers”), substantivisation of the neuter plural of rēgālis (“of a king”), from rēx (“king”). By surface analysis, regal + -ia.