An eaves-line border; a tomb-opening border.
A border, usually made of flagstone, da'da' 1, running around the four sides of the space under a traditional house, dola 2, is positioned so that water falling from the eaves will miss the border and fall into a ditch adjacent to it. A tomb-opening border is laid of paving stones around the earth-filled vertical access hole of a burial tomb, lūbu', to mark its location.