What is to remove or detach, as any part or implement, from its proper position or connection when in use; as, to unship an oar; to unship capstan bars; to unship the tiller called?

unship — (Naut.) To remove or detach, as any part or implement, from its proper position or connection when in use; as, to unship an oar; to unship capstan bars; to unship the tiller. (Webster's 1913.)