†(in early use) some kind of board used in carpentry (obsolete); (later) Nautical (in plural) pieces of wood extended around a ship's quarters and stern (now historical).
Origin
Late Middle English.
Definition of quarter-board in US English:
quarter-board
noun
†(in early use) some kind of board used in carpentry (obsolete); (later) Nautical (in plural) pieces of wood extended around a ship's quarters and stern (now historical).