What is the origin of 'sleep tight'?
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Definition of roof work in US English:
roof work
noun
1Mining the upper surface or part of a working or seam (now rare).
2Roofing, especially of a decorative kind.
3Work or repairs carried out on a roof.
Origin
Mid 17th century; earliest use found in Edward Manlove (bap. 1615, d. 1671), lawyer and poet.
