Meaning of the Sanskrit Word: manuna

  manuna—by the father of mankind    SB 2.7.2
  manuna—the would-be Vaivasvata Manu    SB 2.7.12
  manuna—and with Manu    SB 3.13.20
  manuna—by Manu    SB 5.1.21

Can't find any compound Sanskrit words containing manuna.