nostrum
词根词缀：
nostalgia n. 思乡情（病）
nost 家 + alg 痛 + ia 某种病 → 想家想得心痛的病 → 思乡病
nostomania n. 思乡狂
nosto〔= nost〕家 + mania …狂 → 思乡狂
nostopathy n. 怀乡病
nosto〔= nost〕家 + pathy 病 → 想家乡的病 → 怀乡病
nostrum n. 民间药，秘药
nostr〔= nost〕家 + um → 家里的药物 → 民间药
数据来源：新东方英语词汇速记大全
相关例句：
There is no nostrum in the world. To keep fit, just come to this Body-Building centre and have a try.
世上本无万能灵药，欲健康，请来本健美中心试一试。钱不是万能的，但没有钱是万万不能的。
Yet the ending of Mare Nostrum has done nothing to discourage refugees, who are driven by desperation and criminally seduced by traffickers.
然而，我们的海行动结束没能阻止难民的脚步，他们被绝望所驱使，又受到了蛇头的怂恿。
He told the patient that he had a nostrum.
他告诉病人他有秘方。
Use besides the space outside, furniture is had muti_function utility, also be the one big nostrum of economic space.
除了空间利用外，家具具有多功能用途，也是节省空间的一大妙方。
The end of Mare Nostrum coincided with the beginning of Triton, a pan-European border control mission, but its scope is confined to patrolling waters only up to 30 miles off the Italian coastline and is not primarily designed for search and rescue.
我们的海行动终结，恰逢泛欧洲边境控制行动Triton启动，但是后者的任务范围仅局限于在距意大利海岸线至多30英里的水域内巡逻，并且主要目的并非搜救。
But Mare Nostrum was wound down at the end of last year due to its lack of support in many European countries grappling with rising anti-immigrant sentiment.
但是，由于在许多难以应对反移民情绪抬头的欧洲国家缺乏支持，我们的海行动于去年年底被搁置。