Note: Do not rely on this information. It is very old.
Derelict
Derelict, anything cast away or abandoned, with the intention of quitting the ownership thereof. Goods thrown out of a vessel to lighten same in time of distress are not derelict for the want of intention. The term is also applied to land left dry by the sea shrinking back below the usual high-water mark, or by a river changing its bed.