http://en.wikipedia.org/wiki/Toque
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http://en.wikipedia.org/wiki/Toque#Canadian_usage
Canadian usage
Main article: tuque
In Canada, toque, or tuque, is the common name for a knit winter hat, like a watch cap or stocking cap. The word is pronounced /ˈtjuːk/, whereas other kinds of toques are still pronounced /ˈtoʊk/ in Canada, as elsewhere. This usage was assimilated from Canadian French tuque much later, and is first attested in writing around 1870.[1][2][3]
This fashion originated when the coureurs de bois, French and Métis fur traders, kept their woollen nightcaps on for warmth during cold winter days