British Dialect. A small mound, hill, or rise of ground.
British Dialect. A clump of grass, shrubs, or trees, especially rising from a swamp or bog.
British Dialect. A heap or stack, as a haystack.
Despite the fine afternoon sunlight all around, the tump itself seemed steeped in perpetual shadow, brooding and ominous.
Stephen R. Lawhead, The Spirit Well, 2012
They buried the coffin in their garden. No cross marked it, just a brown tump in the bleak landscape.
Willy Peter Reese, A Stranger to Myself, translated by Michael Hofmann, 2005
The noun tump has an obscure etymology. It is a dialect word used mostly in the British West Country (Somerset, Cornwall) and the West Midlands (around Birmingham). Tump may come from the Welsh noun twmp “round mass, hillock,” unless the Welsh word comes from English. Tump entered English in the 16th century.