the.com/regalia

means The special clothing, badges, or symbols that show someone's rank, office, or membership — crowns, robes, chains, sashes, the whole ceremonial kit.

from From Latin 'regalia,' meaning 'royal things,' the plural of 'regalis' (royal), itself from 'rex' (king). It originally referred specifically to the rights and privileges of a sovereign — things only a king could claim, like minting coins or holding certain lands — before loosening over centuries to cover the ceremonial trappings of any office, guild, or fraternal order that wanted to borrow a little of that kingly shine.