ey·rir \ˈāˌrir\noun (pluralau·rar \ˈœueˌrär\) Etymology: Icelandic, from Old Norse, ounce (usually of silver), money (in plural), probably from Latin aureus, gold coin — more at aureus 1.: a unit of monetary value in Iceland worth 1/100 of a krona — see money table 2.: a small coin representing one eyrir unit