Origin of clerestoryMiddle English clerestorie ; from cler, clear + storie, story
nounpl. clere·sto·ries also clear·sto·ries
- The upper part of the nave, transepts, and choir of a church, containing windows.
- An upper portion of a wall containing windows for supplying natural light to a building.
Origin of clerestoryMiddle English clerestorie : perhaps cler, giving light, clear; see clear + storie, tier; see story2.