1819, "to fill (a hole containing an explosive) with dirt or clay before blasting," a workmen's word, perhaps a back-formation from tampion, that word being mistaken as a present participle (*tamping).
例文
1. Then I tamp down the soil with the back of a rake.
そして私は熊手の背で土壌をたたいた。
2. Tamp the coffee grinds in the container to make espresso.
容器にコーヒー粉を挽いてエスプレッソを沸かす。
3.Now,China wants to tamp such nationalism down.
現在、中国はナショナリズムを抑圧したいと考えている。
4.The first step is to set up programs in order to tamp the development foundation.