clerestory
UK[ˈklɪəstɔːri]US[ˈklɪrstɔːri]
n
The upper part of the nave, choir, and transepts of a large church, containing a series of windows that allow light to enter the building.
n
A similar arrangement of windows high in the wall of any large interior space.
Morpheme Breakdown
clear
story
clear
story
Etymology
The word 'clerestory' originates from the Middle English term 'clerestorie', a compound of 'clere' (meaning clear or bright) and 'storie' (referring to a level or floor). The term's logic is transparently literal: it describes the "clear story" or the level of a building characterized by its windows, designed to admit light. This architectural feature was particularly developed in Romanesque and Gothic cathedrals, where the need to illuminate vast interior spaces led to the elevation of a wall section above the aisle roofs, filled with windows. The evolution from the literal "bright floor" to a specific architectural term demonstrates how functional descriptions become standardized technical vocabulary.
Analysis
Structure: clear + story
clear: From Middle English 'clere', meaning bright, luminous, or transparent. Its functional role is to convey the concept of light.
story: From Old French 'estoree' (meaning a floor or level of a building), ultimately from Latin 'historia'. Its functional role is to denote a level or tier of a structure.
Examples
Sunlight streamed through the stained glass of the cathedral's clerestory.
The architect designed a modern clerestory to flood the art gallery with natural light.
Restoration work on the medieval church included repairing the stone tracery of the clerestory windows.