drumlin

• n. 冰堆丘；冰丘；[地质] 鼓丘

来自爱尔兰语droim, 背，山脊。-lin, 小词后缀。鼓丘是上世纪50年代的地理学界的错误翻译，虽然有学者指出这一错误，但是由于以讹传讹，已经固化为专有名词。

drumlin (n.)

1833, diminutive of drum (1725) "ridge or long, narrow hill," often separating two parallel valleys, from Gaelic and Irish druim "back, ridge."