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sconcheon

American  
[skon-chuhn] / ˈskɒn tʃən /

noun

Architecture.
  1. the reveal of a window or doorway from the frame to the inner face of the wall.


Etymology

Origin of sconcheon

1325–75; Middle English sconchon, sconcheon < Old French escoinson corner, cut angle, derivative of coin, cuigne angle; coin