As nouns the difference between femerell and fumerell
is that femerell is (archaic) the lantern, louvre, or covering placed in the ridge of a hall roof for the purpose of ventilation or letting out the smoke of the fire kindled on a central hearth while fumerell is .
femerell
English
Noun
(femerells)
(archaic) The lantern, louvre, or covering placed in the ridge of a hall roof for the purpose of ventilation or letting out the smoke of the fire kindled on a central hearth.
References
* femerell, ''Encyclopedia Britannica , 1911 edition.