The Collaborative International Dictionary of English v.0.48:
Connoisseurship \Con`nois*seur"ship\ (?; 277), n. State of being a connoisseur. [1913 Webster]WordNet (r) 3.0 (2006):
connoisseurship n 1: love of or taste for fine objects of art [syn: virtu, vertu, connoisseurship]