great-great-grandsonWiktionary 原文构词拆分great-前缀With familial designations, used to denote a removal of one generation+great-前缀With familial designations, used to denote a removal of one generation+grandson词根/词干词源说明From great- + great- + grandson.释义（英文）名词 NounThe son of one's great-grandchild.