What is the origin of 'sleep tight'?
Read moreOne of the mysteries of the English language finally explained.
The method or result of representing the solid part of a building (as a wall, etc.) by a darkened area on an architectural plan; (occasionally) a pen for doing this.
with object To darken or fill in (walls, columns, etc.) with shading on an architectural plan.
Early 20th century. From French poché, past participle of pocher to sketch<br>1960s. From poché.