datestone

Noun

(architecture) An embedded stone with a date carved into it.

Japanese Meaning

建築用語で、埋め込まれた石に日付が彫り込まれており、建物の建造年などを示すために用いられる石。

The mason pointed out the datestone above the doorway and explained the building's construction year.

石工は玄関の上にある年号入りの埋め込み石を指さし、その建物の建築年を説明した。

Sense（1）

(architecture) An embedded stone with a date carved into it.

Judging by the datestone in the lintel, this house was built around 1750.

datestones

（ plural ）