sconcheon

[ skon-chuh n ]
/ ˈskɒn tʃən /

noun Architecture.

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

Origin of sconcheon

1325–75; Middle English sconchon, sconcheon < Old French escoinson corner, cut angle, derivative of coin, cuigne angle; see coin
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019