Origin and history of gravestone

"excavation in earth for reception of a dead body," from Old English græf "grave; ditch, trench; cave," from Proto-Germanic *grafa-/graba- (source also of Old Saxon graf, Old Frisian gref, Old High German grab "grave, tomb;" Old Norse gröf "cave," Gothic graba "ditch"), cognate with Old Church Slavonic grobu "grave, tomb," and perhaps (Watkins) from a PIE root *ghrebh- (2) "to dig, to scratch, to scrape," and related to Old English grafan "to dig" (see grave (v.)). Or perhaps a substratum word in Germanic and Balto-Slavic.

The normal mod. representation of OE. græf would be graff; the ME. disyllable grave, from which the standard mod. form descends, was prob. due to the especially frequent occurrence of the word in the dat. (locative) case. [OED, 1989]

From Middle Ages to 17c., they were temporary, crudely marked repositories from which the bones were removed to ossuaries after some years and the grave used for a fresh burial. "Perpetual graves" became common from c. 1650. Grave-side (n.) is from 1744. Grave-robber attested from 1757.

To make (someone) turn in his grave "behave in some way that would have offended the dead person" is attested by 1842, "If your father could hear this, it would make him turn in his grave," translating German wan Ihr Vahter dieses im Grabe hörte So würde er Sich um kehren, in a review of a publication of Prussian documents from the Seven Years War ["Foreign Quarterly Review," October 1842]

"discrete piece of rock," especially not a large one, Old English stan, which was used of common rocks, precious gems, concretions in the body, memorial stones, from Proto-Germanic *stainaz (source also of Old Norse steinn, Danish steen, Old Saxon sten, Old Frisian sten, Dutch steen, Old High German stein, German Stein, Gothic stains).

This is reconstructed to be from PIE *stoi-no-, suffixed form of root *stai- "stone," also "to thicken, stiffen" (source also of Sanskrit styayate "curdles, becomes hard;" Avestan stay- "heap;" Greek stear "fat, tallow," stia, stion "pebble;" Old Church Slavonic stena, Russian stiena "wall").

From late 12c. as "substance of which stones consist, rock, stone as a medium." The sense of "testicle" was in late Old English. The British measure of weight (usually equal to 14 pounds) is from late 14c., originally a specific stone.

Stone-fruit, "drupe, fruit with a hard stone or nut at the center," is from 1520s. Stone's throw for "a short distance" is attested from 1580s; stone's cast in the same sense is from late 13c., also "a short time." Stone age, "period of human cultural development marked by tools or weapons made of stone," is from 1864; adjectival extended sense of "outmoded, unsophisticated" is by 1927.

To kill two birds with one stone "accomplish two purposes with one act" is attested by 1650s. To leave no stone unturned "use every possible expedient" is from 1540s.

To have a heart of stone figuratively is by late 14c. (in a list of 1897 slang terms, to refuse a person's appeal is to give him the marble heart).