δρύ-οχος (δρῦς, ἔχω): pl., ribs of a ship or boat,
Od. 19.574†. (See cut.)
Later the same word designates the keelson, as holding fast the ribs,
the lower ends of which are inserted into it. (See cut, where f
e designates the stem; b g, keelson; i h, mast; o, o,
o, ribs.)