The head, probably as being the fort and citadel of a man: from SCONCE, an old name for a fort, derived from a Dutch word of the same signification; To build a sconce: a military term for bilking one's quarters. To sconce or skonce; to impose a fine. ACADEMICAL PHRASE.
SCONCE
Meaning of SCONCE in English
Slang English vocab. Английский сленговый словарь. 2012