Meaning of the Sanskrit Word: paramahamsyam

  paramahamsyam—the highest stage of perfection    SB 2.7.10
  paramahamsyam—of the paramahamsas, the most perfect human beings    SB 7.13.46
  paramahamsyam—of the highest spiritual perfection of human life    SB 5.1.26

Can't find any compound Sanskrit words containing paramahamsyam.