Spire light

Spire light (Fr. lucarne), the term given to the windows in a spire which are found in all periods of English Gothic architecture, and in French spires form a very important feature in the composition.^[1]

Lucarne on the church spire of St Botolph's Church, Ratcliffe on the Wreake, England

There is an early example in the spire of the cathedral at Oxford; they are not glazed, and have occasionally, if of large size, transoms to strengthen the mullions.^[1]

The term lucarne is used in France to mean "dormer window". They take many different forms which distinguishes the form of small roof above the window: "à chevalet" (straight lucarne), lucarne avec saillie and lucarne "à la capucine" (or with receding roof).^{[citation needed]}