grass hearthglossary / GRASS HEARTH grass hearth. Hist. A tenant’s customary service, consisting of the tenant’s bringing his plow to the lord’s land and plowing it for one day. 词条贡献者 资深译员Ting,世界知名语言学院法律英语专业,专注翻译各种与专业责任纠纷有关的法律文件。