Veil
A veil was a long gauzy item of clothing usually worn on or over the head.

When reveling in the beauty of the Shore Leave Planet, Yeoman Tonia Barrows thought she ought to be wearing a tall hat with a veil. ()

Veils could also be worn when in a state of mourning. ()

A veil could also be used as a metaphor for an obstruction to understanding. While praying to the Prophets, Kai Winn asked them to lift a veil of darkness from Benjamin Sisko. ()

A Risian traditional wedding dress that Leeta was shown in 2373 also appeared to feature a veil. ()

See also
Rul the Obscure

External link 
 
Clothing accessories