Backstairs
Nuttall's Standard Dictionary of the English Language · 1890 · p. 14
bak' -stayrz, s.pl. back or private stairs; a. underhand.
Bu kavram başka kaynaklarda da geçiyor
The American Dictionary and Cyclopedia (1910)
Chamber's Etymological of the English Language (1895)
Readham'da tam maddeyi gor →