Meaning of the Sanskrit Word: paugandake

  paugaṇḍake—at the age of paugaṇḍa, beginning with the sixth year (one year later)    SB 10.12.37
  paugaṇḍake—in the paugaṇḍa age (after one year)    SB 10.12.41

Can't find any compound Sanskrit words containing paugandake.