遺い構こう

noun

archaeological remains; ancient structural remnants

Refers to the physical remains of ancient structures, such as foundations, walls, or ruins, uncovered through excavation or still visible on a site.

• この地ち域いきからは、縄じょう文もん時じ代だいの遺い構こうが多た数すう発はっ見けんされている。

  Many archaeological remains from the Jomon period have been discovered in this area.

• 城しろの遺い構こうが今いまもわずかに残のこっている。

  A few remnants of the castle still remain today.