Connoisseur

имя существительное [французский язык] знаток, специалист, эксперт; ценитель Синоним(ы): expert

Большой англо-русский словарь

Connoisseur

noun Etymology: obsolete French (now connaisseur), from Old French connoisseor, from connoistre to know, from Latin cognoscere — more at cognition 1. expert; especially one who understands the details, technique, or principles of an art and is competent to act as a critical judge 2. one who enjoys with discrimination and appreciation of subtleties Example: a connoisseur of fine winesconnoisseurship noun

Merriam-Webster's Collegiate Dictionary