post diemglossary / POST DIEM post diem (pohst dI-[schwa]m). [Latin] After the day. • A plea of payment post diem is made after the day when the money becomes due. 词条贡献者 译者晓琳,法学硕士(国际争议解决方向),擅长翻译各种与复杂跨境争议相关的法律文件。