Thatch \Thatch\, v. t. [imp. & p. p. {Thatched}; p. pr. & vb. n.
{Thatching}.] [From {Thatch}, n.: cf. OE. thecchen, AS.
?eccean to cover.]
To cover with, or with a roof of, straw, reeds, or some
similar substance; as, to thatch a roof, a stable, or a stack
of grain.
[1913 Webster]