dormer vs lintel

dormer

noun
  • A room-like, roofed projection from a sloping roof. 

  • A resident of a dormitory. 

lintel

noun
  • A horizontal structural beam spanning an opening, such as between the uprights of a door or a window, and which supports the wall above. 

How often have the words dormer and lintel occurred in a corpus of books? (source: Google Ngram Viewer )