bezant
noun/ˈbɛzənt/
Etymology From Middle English besaunt, from Old French bezant, nominative bezanz, from Latin byzantius (“of Byzantium”).
1
History, Human sciences, Sciences A coin made of gold or silver, minted at Byzantium and used in currency throughout mediaeval Europe.
2
Government, Heraldry, Hobbies, Lifestyle, Monarchy, Nobility, Politics A roundel or (that is, a golden circle), the heraldic representation of a gold coin.
- One and All is the motto of the County of Cornwall, used below the coat-of-arms, which is a shield embracing fifteen bezants, or golden roundels, on a black ground; [...].1941 December, “The Why and the Wherefore: Cornish names of G.W.R. locomotives”, in Railway Magazine, page 575: