"quack medicine," c. 1600, from Latin nostrum remedium "our remedy," presumably that prepared by the person offering it, from Latin nostrum, neuter of noster "our," from nos "we," from PIE *nos (see us).
中文解释
nostrum no（不）+strum（发音“私传”）：秘方药不对外私传
实用例句
1. Some nostrum peddled as a cure for unemployment.