Crest tile, a tile made to cover the ridge of a roof, fitting upon it like a saddle. -- Interior crest (Fort.), the highest line of the parapet.
Crest, v. t. [imp. & p. p. Crested; p. pr. & vb. n. Cresting.] 1. To furnish with, or surmount as, a crest; to serve as a crest for.
His legs bestrid the ocean, his reared arm
Crested the world.
Shak.
Mid groves of clouds that crest the mountain's brow.
Wordsworth.