connaisseur

Etymology
Either a borrowing of the or an updating of the earlier borrowing, connoisseur, to bring it into line with modern French orthography.

Noun

 * 1) A specialist of a given field, especially in one of the fine arts or in a matter of taste: a connoisseur.
 * 2) * 1847, L. Piale (publisher), Guide to Naples and Sicily, Part I: Naples, page 42:
 * The gallery of Prince Valsavoja contains about 100 pictures several of which deserve the attention of the artist and connaisseur.
 * 1) * 1890, Hamilton Aïdé, “Manners and Customs of Sicily in 1890” in James Knowles, editor, The Nineteenth Century: a monthly review (July–December 1890), page 579:
 * They pass their Sundays agreeably, in complete repose: seated outside their doors, dressed in the best clothes, and displaying, with serene satisfaction, the many rings, pendants, and huge earrings of rare beauty, inherited for many past generations, and which possess an individual character that the connaisseur at once recognises.

Etymology
From.

Noun

 * 1) connoisseur