tumulus

noun

Etymology: From Latin tumulus (“mound, hill”), from tumeō (“to swell”). Doublet of tombolo.

1. A mound of earth, especially one placed over a prehistoric tomb; a barrow.

   “They planted the cannon on the tumuli, sole elevations in this level country, and formed themselves into column and hollow square.”

   “Near Smeinogorsk an octagonal tumulus has been found containing the corpse of a horse near a rectangular one with a human corpse, both within stone circles.”