Meaning of the Sanskrit Word: nrpanam

  nrpanam—of the kings    SB 3.1.43
  nrpanam—for the kings    SB 4.17.26
  nrpanam—of all the kings    SB 1.19.13
  nrpanam—of the kings or administrators    SB 1.11.34

Can't find any compound Sanskrit words containing nrpanam.