Ritz (n.)

s a symbol or embodiment of high quality or superiority, 1910 (Ritzian, adj., is attested by 1908), a reference to the luxurious Ritz hotels in New York, London, Paris, etc., commemorating Swiss hotelier César Ritz (1850-1918). To put on the ritz "assume an air of superiority" is recorded from 1926. A verb ritz "to behave haughtily" is recorded from 1911. As an adjective by 1926.

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Definitions of Ritz from WordNet
ritz (n.)
ostentatious display of elegance;
they put on the ritz
Ritz (n.)
Swiss hotelier who created a chain of elegant hotels (1850-1918);
Synonyms: Cesar Ritz
Ritz (n.)
an ostentatiously elegant hotel;