letters testamentary

letters-testamentary的词性：
pl.n.（复数名词）

1. A document issued by a probate court or officer informing an executor of a will of his or her appointment and empowering the executor to discharge the appointed responsibilities.
遗嘱执行人授权书：遗嘱检验法庭或官员发放的，通知指定的遗嘱执行人并授权执行其指定义务的书面文件