dolmen

n = cromlech.

dogmatist, dogmatize, dogmatise, dogrose, dogsbody, dogwood, doh (also do), doily (also doyley, doyly), doings, dol, doldrums, dole, doleful, dolefully, dolefulness, doll, doll's house, dollar, dollop, dolly, dolly-bird (also dolly), dolorous, dolour (US dolor), dolphin, dolt, doltish, domain, dome, domed, Domesday Book, domestic, domestic science, domestically, domesticate, domestication, domesticity, domicile, domiciled, domiciliary, dominance, dominant,