se·quin 
(sēkwĭn)
(sēkwĭn)n.
1. A small shiny ornamental disk, often sewn on cloth; a spangle.
2. A gold coin of the Venetian Republic. Also called zecchino.
tr.v. se·quined, se·quin·ing, se·quins
To affix sequins to (a garment, for example).
[French, from Old French, Venetian coin, from Italian zecchino, from zecca, mint, from Arabic sikka, coin die, from sakka, to close, coin; see skk in the Appendix of Semitic roots.]