Etymology: [ win-(")dO ] (noun.) 13th century. From Old Norse vindauga, combined from of vindr (“a wind”) (Danish, Norwegian and Swedish vind, cognate to English wind) and auga (“eye”), literally “wind-eye”. The “windows” in these times were just unglazed holes (eyes) in the wall or roof that permitted wind to pass through.
Tenses: windows, windowing, windowed