Dormer
/ˈdɔːr.mər/noun
A window that projects vertically from a sloping roof.
Did you know?Dormer ultimately comes from Latin *dormire* “to sleep,” because the original sense was tied to a sleeping chamber, not the window itself.
Etymological Timeline
Latin
Latin
dormire
“to sleep”
Late Latin
LL
dormitorium
“a sleeping place; dormitory”
Old French
OF
dormeor
“sleeping chamber or place to sleep”
Middle English
ME
dormer
“a sleeping room or chamber in a house”
Modern English
English
dormer
“a windowed structure projecting from a roof”