- a window set upright in a sloping roofalso dormer window
- the roofed projection in which this window is set
Origin of dormerOld French dormeour ; from Classical Latin dormitorium: see dormitory
- A small roofed structure projecting outward on a larger sloping roof.
- A window set in such a structure.
Origin of dormerObsolete French dormeor, sleeping room, from dormir, to sleep; see dormant.
gabled roof dormer
From Middle French dormoir (“sleeping room”), from dormir (“to sleep”)