The Collaborative International Dictionary
Numismatical
Numismatic \Nu`mis*mat"ic\, Numismatical \Nu`mis*mat"ic*al\, a. [L. numisma, nomisma, a piece of money, coin, fr. Gr. ? anything sanctioned by usage, the current coin, fr. ? to introduce a custom, or usage, fr. no`mos a custom, or usage, fr. ne`mein to distribute, assign: cf. F. numismatique. See Nomad.] Of or pertaining to coins; relating to the science of coins or medals.
Wiktionary
numismatical
a. (alternative form of numismatic English)