Meaning of the Sanskrit Word: nihsreyasam

  nihsreyasam—the ultimate perfectional goal    SB 3.27.28, SB 3.27.29, SB 3.27.28-29
  nihsreyasam—ultimately beneficial    SB 3.9.41
  nihsreyasam—the supreme goal of life, namely the means of obtaining ecstatic love for the Supreme Personality of Godhead    SB 6.9.50
  nihsreyasam—the supreme benefit    SB 4.24.75

Can't find any compound Sanskrit words containing nihsreyasam.