Tarn

vuoristolampi puhekieltä A small mountain lake, especially in northern Northern England.
1839, w:Edgar Allan Poe|Edgar Allan Poe, w:The Fall of the House of Usher|The Fall of the House of Usher, w:Project Gutenberg|Project Gutenberg (1997), http://www.gutenberg.org/dirs/etext97/usher10h.htm 1,

It was possible, I reflected, that a mere different arrangement of the particulars of the scene, of the details of the picture, would be sufficient to modify, or perhaps to annihilate its capacity for sorrowful impression; and, acting upon this idea, I reined my horse to the precipitous brink of a black and lurid tarn that lay in unruffled lustre by the dwelling, and gazed down—but with a shudder even more thrilling than before—upon the remodelled and inverted images of the gray sedge, and the ghastly tree-stems, and the vacant and eye-like windows.