(treated as sing.) the study or collection of coinage, coins, paper money, medals, tokens, etc
numismatic adj
numismatically adv
numismatist /nyoohʹmiz-/ noun
numismatology /-ʹtoləji/ noun
[French numismatique, via Latin from Greek nomismat-, nomisma current coin, from nomizein to have in use, from nomos custom, law]