積つみ石いし

noun

piled stones; stacked stones

Refers to stones that have been intentionally piled or stacked, often for a purpose such as a marker, monument, or simple structure.

• 登と山ざん道どうには積つみ石いしがいくつもあった。

  There were many piled stones along the mountain trail.

noun

foundation stone; cornerstone

Used for a stone that serves as a foundation or cornerstone in construction, or metaphorically as a fundamental element.

• この建たて物ものの積つみ石いしは百ひゃく年ねん以い上じょう前まえのものだ。

  The foundation stones of this building are over a hundred years old.