quinarius

[ kwi-nair-ee-uh s ]
/ kwɪˈnɛər i əs /

noun, plural qui·nar·i·i [kwi-nair-ee-ahy] /kwɪˈnɛər iˌaɪ/.

a denomination of ancient Roman coinage, issued in silver or gold at various times and undergoing many changes of value.

Origin of quinarius

1595–1605; < Latin quīnārius; see quinary