antoninianus

[ an-tuh-nin-ee-ey-nuhs ]

noun

, plural an·to·nin·i·a·ni [an-t, uh, -nin-ee-, ey, -nahy].

1. a Roman coin of the 3rd century a.d., originally of silver but later debased.

Word History and Origins

Origin of antoninianus¹

< Latin Antōnīniānus pertaining to Antoninus, equivalent to Antōnīn ( us ) + -iānus -ian