Ridge, back. Written Drum, Drom, Drim — the same Irish word, droim, in the spellings English gave it.
Droim is a back, and by extension a ridge — the long low ridges of glacial drumlin country in particular, which is why the Drum- names cluster so thickly across Cavan, Monaghan, Leitrim and Down. The geological term drumlin is the same Irish word, taken into English by the geologists who first described the landform there.
Source: P. W. Joyce, The Origin and History of Irish Names of Places (1869–1913) · Logainm ↗
Ridge, back: it is the Irish droim. Droim is a back, and by extension a ridge — the long low ridges of glacial drumlin country in particular, which is why the Drum- names cluster so thickly across Cavan, Monaghan, Leitrim and Down. The geological term drumlin is the same Irish word, taken into English by the geologists who first described the landform there.
droim. English spellings of the same word include Drum, Drom, Drim, because the names were written down by ear.
Drumshanbo (Droim Seanbhó).