from
The Collaborative International Dictionary of English v.0.48
Cleat \Cleat\ (kl[=e]t), n. [OE. clete wedge; cf. D. kloot ball,
Ger. kloss, klotz, lump. clod, MHG. kl[=o]z lump, ball,
wedge, OHG. chl[=o]z ball, round mass.]
[1913 Webster]
1. (Carp.) A strip of wood or iron fastened on transversely
to something in order to give strength, prevent warping,
hold position, etc.
[1913 Webster]
2. (Naut.) A device made of wood or metal, having two arms,
around which turns may be taken with a line or rope so as
to hold securely and yet be readily released. It is bolted
by the middle to a deck or mast, etc., or it may be lashed
to a rope.
[1913 Webster]