Mammoth Uncensored Word List:
105 - 8 letter words starting with or

oracling oracular oragious oralisms oralists orangery orangest orangier orangish orarians orarions orariums orations oratorio oratress orbitals orbiters orbities orbiting orchards orchella orcheses orchesis orchilla orchises orchitic orchitis orcinols ordained ordainer ordalian ordalium orderers ordering ordinals ordinand ordinant ordinars ordinary ordinate ordinees ordnance ordurous orective oreganos oreodont oreology oreweeds orexises organdie organics organise organism organist organity organize organons organums organzas orgasmed orgasmic orgastic orgiasts orgulous oribatid orichalc orielled oriental oriented orienter orifexes orifices origamis origanes origanum original orillion orinasal ornament ornately ornatest ornerier ornithes ornithic orogenic orometer oronasal oropesas orphaned orphical orphisms orphreys orpiment orreries orseille orsellic orthicon orthodox orthoepy ortholog orthopod orthoses orthosis orthotic ortolans