Windows 2010 - The visual version:
The word Window originates from the Old Norse vindauga, from vindr "wind" and auga "eye." "Vindauga" is still used in Icelandic, as well as some Norwegian and Swedish dialects to mean exactly the same thing: window. It is first recorded in the early 13th century, and originally referred to an unglazed hole in a roof. Window replaced the Old English eagþyrl, which literally means "eye-hole," and eagduru, "eye-door". Most Germanic languages however adopted the Latin word fenestra to describe a window with glass, such as Swedish fönster, or German Fenster. Notable exceptions to this, apart from English, are Danish and Norwegian, with the English word window closely resembling the words vindue and vindu respectively. This is probably due to the Scandinavian influence on the English language by means of loanwords during the Viking Age. In English the word fenester was used as a parallel until the mid-1700s and fenestration is still used to describe the arrangement of windows within a facade.