tuxedo
Pronunciation: /tʌkˈsiːdəʊ/
noun ( plural tuxedos or tuxedoes)
chiefly North American
Origin:
late 19th century: from Tuxedo Park, the site of a country club in New York, where it was first worn

Spelling help
The plural of tuxedo can be spelled either tuxedoes or tuxedos.