"flat stone used as a griddle," c. 1200, from bake (v.) + stone (n.).
Entries linking to bakestone
bake v.
Old English bacan "to bake, to cook by dry heat in a closed place or on a heated surface," from Proto-Germanic *bakan "to bake" (source also of Old Norse baka, Middle Dutch backen, Old High German bahhan, German backen), from PIE *bheg- (source also of Greek phogein "to roast"), extended form of root *bhē- "to warm" (see bath). Related: Baked (Middle English had baken); baking. Baked beans is attested by 1803.
stone n.
Old English stan, 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), 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").
Sense of "testicle" is from late Old English. The British measure of weight (usually equal to 14 pounds) is from late 14c., originally a specific stone. Stone-fruit, one with a pit, is from 1520s. Stone's throw for "a short distance" is attested from 1580s. Stone Age is from 1864. To kill two birds with one stone is first attested 1650s. To leave no stone unturned is from 1540s.