'Cummerbund' definitions:

Definition of 'cummerbund'

From: WordNet
noun
A broad pleated sash worn as formal dress with a tuxedo

Definition of 'Cummerbund'

From: GCIDE
  • Cummerbund \Cum"mer*bund`\, n. [Written also kummerbund, cummerband, etc.] [Hind. kamarband, fr. Per. Kamar loins + band fastening.] A sash for the waist; a girdle. [India] [Webster 1913 Suppl.]