English
Noun
thack
#the weatherproof outer layer of a roof, often thatch specifically
#:Quotations
#:*1952: This outer layer was generically known as 'thack', but, owing to the fact that the vast majority of buildings in early times were covered with a thacking of straw or some similar material, 'thatch' gradually acquired it's modern restricted significance of straw, or reed, heling. — L.F. Salzman, Building in England, p. 223.
Verb
thack (thacked, thacking)
#the act of covering a roof with thack
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