—n.
1 a roof-covering of straw, reeds, palm-leaves, or similar material.
2 colloq. the hair of the head.
—v.tr. (also absol.) cover (a roof or a building) with thatch.
Derivatives:
thatcher n.
Etymology: n. late collateral form of thack (now dial.) f. OE thaeligc, after v. f. OE theccan f. Gmc, assim. to thack
Useful english dictionary. 2012.