Definition of date stone in US English:

date stone

noun

  • The stone of a date.

noun

  • An engraved stone embedded in a building or other structure, commemorating the date of construction and sometimes bearing other information, as the name or initials of the original owner, builder, etc.

Origin

Late Middle English; earliest use found in Liber de Diversis Medicinis. From date + stone<br>early 19th century. From date + stone.

Pronunciation

date stone

/ˈdeɪt stəʊn/