Word Study
Entresol
CIDE DICTIONARY
Entresol, n. [F.].
A low story between two higher ones, usually between the ground floor and the first story; mezzanine. Parker. [1913 Webster]
OXFORD DICTIONARY
Entresol, n. a low storey between the first and the ground floor; a mezzanine floor.
Etymology
F f. entre between + sol ground
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