1911 Encyclopædia Britannica/Gazebo

​GAZEBO (usually explained as a comic Latinism, for “I will gaze”; the New English Dictionary suggests a possible oriental origin now lost), a term used in the 18th century for a structure on the outer wall of a garden, having an upper storey with windows on each side so as to overlook the road. Similar buildings are found in Holland on the borders of the canals, which in some cases form very picturesque features.