Chesstree :: Chesstree (n.) A piece of oak bolted perpendicularly on the side of a vessel, to aid in drawing down and securing the clew of the mainsail..
Crosstrees :: Crosstrees (n. pl.) Pieces of timber at a masthead, to which are attached the upper shrouds. At the head of lower masts in large vessels, they support a semicircular platform called the top..
Cultirostres :: Cultirostres (n. pl.) A tribe of wading birds including the stork, heron, crane, etc..
Curvirostres :: Curvirostres (n. pl.) A group of passerine birds, including the creepers and nuthatches..
Custrel :: Custrel (n.) An armor-bearer to a knight.