curule
Concise Oxford English Dictionary © 2008 Oxford University Press:
curule /ˈkjʊəruːl/
▶adjective denoting or relating to the authority exercised by the senior magistrates in ancient Rome, chiefly the consul and praetor, who were entitled to use the sella curulis (a kind of folding chair).
– origin C17: from L. curulis, from currus ‘chariot’ (in which the chief magistrate was conveyed to the seat of office).
'curule' also found in these Oxford entries:

