quaintrelle

Borrowed from Late Middle English queyntrelle (“person of fashion”), from Middle French cointerelle, from Middle French cointerel (“vain”) + -elle, -ele (suffix forming feminine diminutive nouns), possibly influenced by quaint. Cointerel is derived from cointe (“clever, intelligent; quaint”), from Latin cognitus (“known, recognized; acknowledged, noted”), the perfect passive participle of cōgnōscō (“to be acquainted (with), recognize; to learn; to know”), from con- (prefix meaning ‘with’) + (g)nōscō (“to know, recognize”) (ultimately from Proto-Indo-European *ǵneh₃- (“to know”) + *-sḱéti (suffix forming durative or iterative imperfective verbs from roots)).

来源：wiktionary