- Also thatching. a material, as straw, rushes, leaves, or the like, used to cover roofs, grain stacks, etc.
- a covering of such a material.
- the leaves of various palms that are used for thatching.
- something resembling thatch on a roof, especially thick hair covering the head: a thatch of unruly red hair.
- Horticulture. a tightly bound layer of dead grass, including leaves, stems, and roots, that builds up on the soil surface at the base of the living grass of a lawn.
verb (used with object)
- to cover with or as if with thatch.
- Horticulture. to remove thatch from (a lawn); dethatch.
- Also called: thatchinga roofing material that consists of straw, reed, etc
- a roof made of such a material
- anything resembling this, such as the hair of the head
- Also called: thatch palm any of various palms with leaves suitable for thatching
- to cover (a roof) with thatch
v.Old English þeccan “to cover,” related to þæc “roof, thatching material,” from Proto-Germanic *thakan (cf. Old Saxon thekkian, Old Norse þekja, Old Frisian thekka, Middle Dutch decken, Old High German decchen, German decken “to cover”), from PIE *(s)tog-/*(s)teg- “cover” (see stegosaurus). n.Old English þæc “roof, thatch,” from the source of thatch (v.). Cf. Old Norse þak, Old Frisian thek, Middle Dutch dak “roof,” Old High German dah, German Dach “roof.”