[thatch] vt [ME thecchen, fr. OE theccan to cover; akin to OHG decchen to cover, L tegere, Gk stegein to cover, stegos roof, Skt sthagati he covers] (14c): to cover with or as if with thatch -- thatch.er n
[2]thatch n (14c) 1 a: a plant material (as straw) used as a sheltering cover esp. of a house b: a sheltering cover (as a house roof) made of such material c: a mat of undecomposed plant material (as grass clippings) accumulated next to the soil in a grassy area (as a lawn)
2: something likened to the thatch of a house; esp: the hair of one's head