An example of a rampart is a big stone wall around a palace where the king lives that has a flat top so the guards can walk along the top of in order to watch what is going on below.
Origin of rampart
- French rempart from Old French from remparer to fortify re- re- emparer to fortify, take possession of (from Old Provençal amparar) (from Vulgar Latin ante parāre to prepare) (Latin ante- ante-) (Latin parāre to prepare perə-1 in Indo-European roots)
From American Heritage Dictionary of the English Language, 5th Edition
- From Old French rempart (“a rampart of a fort"), from remparer (“to defend, fortify, inclose with a rampart"), from re- (“again") + emparer (“to defend, fortify, surround, seize, take possesion of"), from en- + parer (“to defend").