ritz

[rits] /rɪts/
noun
1.
ostentatious or pretentious display.
verb (used with object)
2.
Slang. to treat with condescension; snub:
The star ritzed the reporters and got a bad press.
Idioms
3.
put on the ritz, Informal. to live in elegance and luxury, especially to make an ostentatious show of one's wealth:
They put on the ritz to impress their guests.
Also, put on the Ritz.
Origin
1925-30; after the sumptuous hotels founded by César Ritz (died 1918), Swiss entrepreneur
British Dictionary definitions for ritz

ritz

/rɪts/
noun
1.
put on the ritz, to assume a superior air or make an ostentatious display
Word Origin
from the luxury hotels created by the Swiss hotelier César Ritz (1850–1918)
Word Origin and History for ritz

Ritz

n.

"high quality, superiority," 1910 (Ritzian, adj., is attested by 1908), in 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.