CUMMERBUND
cummerbund
(noun) a broad pleated sash worn as formal dress with a tuxedo
Source: WordNet® 3.1
Etymology
Noun
cummerbund (plural cummerbunds)
(fashion) A broad sash, especially one that is pleated lengthwise and worn as an article of formal dress, as around a man's waist together with a tuxedo or dinner jacket. [from early 17th c.]
Notes
Source: Wiktionary
Cum"mer*bund`, n. [Written also kummerbund, cummerband, etc.] [Hind.
kamarband, fr. Per. Kamar loins + band fastening.]
Definition: A sash for the waist; a girdle. [India]
Source: Webster’s Unabridged Dictionary 1913 Edition