letters of horningglossary / LETTERS OF HORNING letters of horning. Hist. Scots law. An execution process in which the creditor holding a decree obtained royal letters commanding the debtor to either perform or be outlawed. See HORNING. 词条贡献者 资深译员Pablo,毕业于一所培养高级翻译以及跨文化事务专家的精英大学,专注翻译各种与上市公司代理有关的法律文件。