Meaning of the Sanskrit Word: puratana

  puratana—old    Madhya 1.119, Madhya 1.207, Madhya 20.78
  puratana—the old    Madhya 9.209
  puratana—very old    Madhya 18.76
  puratana—old.    Madhya 20.77

Can't find any compound Sanskrit words containing puratana.