Meaning of the Sanskrit Word: nihsreyasaya

  nihsreyasaya—for the ultimate benefit    SB 3.25.13, Madhya 8.40
  nihsreyasaya—a great personality has no reason to go to the grhastha but to benefit him    SB 10.8.4
  nihsreyasaya—for the ultimate good    SB 1.3.40

Can't find any compound Sanskrit words containing nihsreyasaya.