numismatics \noo-miz-MAT-iks; -mis-; nyoo-\, noun:
the collection and study of money (and coins in particular).
Geeky Word Day
Felicitous, adjective:
Suitably applied or expressed; appropriate; apt.
Happy; delightful; marked by good fortune.
Cognoscente: A person with special knowledge of a subject; a connoisseur.
Equipoise: A state of being equally balanced; equilibrium; – as of moral, political, or social interests or forces.