abacot
n. countablen. a special hat shaped like two crowns that kings in England used to wear a long time ago. It is an old-fashioned word for a royal cap of state.
n. a specific cap of state, wrought in the shape of a double crown, formerly worn by English monarchs. Archaic in register and restricted to historical or heraldic contexts.
The king wore a golden abacot during the ceremony.
Historical records describe the monarch riding into the city while wearing an abacot to signify his royal authority.
The illustration in the medieval manuscript depicts the sovereign adorned with an abacot, though some historians argue the term itself originated from a persistent misspelling of 'bycoket' in early chronicles.
Primarily found in historical texts or dictionaries of antiquities; the term is largely obsolete in modern English.