Ródasî, a dual, though frequently followed by ubhé (I , 10 , 8; 33 , 9; 54 , 2), means heaven and earth, excluding the antáriksha or the air between the two.
If this is to be included, it has to be added: I , 73 , 8. âpapri-vâ´n ródasî antáriksham.