c. 1000. Ælfric, Saints Lives, xvii. (1885), I. 130. Sume men synd swa ablende þæt hi bringað heora lac to eorðfæstum stane.
1868. G. Stephens, Runic Mon., I. 199200. No runic earthfast monument of any kind has ever been found in any Saxon or German territory.
1869. R. B. Peacock, Gloss. Lonsdale Dial., Earthfast, said of a stone appearing on the surface but fast in the earth.
1881. A. Leslie, trans. Nordenskiölds Voy. Vega, I. ii. 97. It [the grave] consisted of a box fixed to the ground with earthfast stakes and cross-bars, so that neither beasts of prey nor lemmings could get through.