Scottish National Dictionary (1700–)
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First published 1971 (SND Vol. VIII). Includes material from the 2005 supplement.
This entry has not been updated since then but may contain minor corrections and revisions.
†SACK, v.2 To make a Chack or tongue in woodworking. Phr. gribbed and sacked, tongued and grooved, of boarding. See also Sex.Sc. 1767 Session Papers, Petition P. Begbie (14 Jan.) 19:
The facings of the comb-celings to be three quarters of an inch finished work, and to be gribbed and sacked together.
