atavusglossary / ATAVUS atavus (at-[schwa]-v[schwa]s), n. [Latin] Roman & civil law. The male ascendant in the fifth degree; a great-grandfather’s or great-grandmother’s grandfather; a fourth grandfather. 词条贡献者 资深译员Paloma,毕业于亚洲一流的翻译学院,擅长翻译各类与境外投资相关的法律文件。