Breastsumer or Breastsummer: How To spell?
The word Breastsumer is misspelled against Breastsummer, a noun meaning "A summer or girder extending across a building flush with, and supporting, the upper part of a front or external wall; a long lintel; a girder; -- used principally above shop windows."
Breastsummer has double "mm" is mispronounced as "m"Remember double 'MM' in between the strings breastsu & er which should not be misspelled with single 'M'
Wrong Spelling:  breastsu-m-er  Correct Spelling:  breastsu-mm-er 
Check more misspelled words of Breastsummer to spell it correct.