(v.)). 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. To make (someone) turn in his grave "behave in some way that would have offended the dead person" is first recorded 1888. Graveyard shift "late-night work" is c.1907, from earlier nautical term, in reference to the loneliness of after-hours work.
1540s, from M.Fr. grave, from L. gravis "weighty, serious, heavy," from PIE base *gru- (cf. Skt. guruh "heavy, weighty;" Gk. baros "weight," barys "heavy in weight," often with the notion of "strength, force;" Goth. kaurus "heavy"). Greek barys (opposed to kouphos) also was used figuratively, of suffering,
sorrow, sobbing, and could mean "oppressive, burdensome, grave, dignified, impressive."
O.E. grafan (p.t. grof, pp. grafen) "to dig, carve," from P.Gmc. *grabanan (cf. O.N. grafa, O.Fris. greva, O.H.G. graban, Goth. graban "to dig, carve"), from the same source as grave
(n.). Its M.E. strong pp., graven, is the only part still active, the rest of the word supplanted
by its derivative, engrave.