Meaning of the Sanskrit Word: puratana

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

Can't find any compound Sanskrit words containing puratana.