Connoisseur
A connoisseur (French traditional (pre-1835) spelling of connaisseur, from Middle-French connoistre, then connaître meaning “to be acquainted with” or “to know somebody/something.”) is a person who has a great deal of knowledge about the fine arts, cuisines, or an expert judge in matters of taste. In many areas the term now has an air of pretension, and may be used in a partly ironic sense, but in the art trade connoisseurship remains a crucial skill for the identification and attribution to individual artists of works by the style and technique, where documentary evidence of provenance is lacking. The situation in the wine trade is similar, for example in assessing the potential for ageing in a young wine through wine tasting.
Connoisseur (noun)
A specialist in a given field whose opinion is highly valued, especially in one of the fine arts or in matters of taste
Connoisseuse (noun)
A female connoisseur.
Connoisseur (noun)
an expert judge in matters of taste
“a connoisseur of music”