Hennin
A hennin was a tall, conical shaped hat worn by European noblewomen, which dated back to Earth's 15th century.

Yeoman Tonia Barrows found a hennin on the Shore Leave Planet. Upon finding it, she stated, "a girl should be dressed like a fairy tale princess, with lots of floaty stuff and a tall hat with a veil." ()

When Lieutenant Commander Worf was introduced to Major Kira Nerys and Lieutenant Commander Jadzia Dax, they had just emerged from a holosuite wearing these hats, prompting Worf to compliment "nice hat," and the officers to clarify that these were not part of their usual attire. ()

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Clothing accessories