Word Study
breastsummer
CIDE DICTIONARY
breastsummer, n.
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. [1913 Webster]
OXFORD DICTIONARY
breastsummer, n. Archit. a beam across a broad opening, sustaining a superstructure.
Etymology
BREAST + SUMMER(2)
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