Meaning of the Sanskrit Word: madhuram

  madhuram—sweet    Adi 4.52, Adi 4.275, Madhya 21.136, Madhya 23.35
  madhuram—more sweet    Madhya 21.136, Madhya 23.35
  madhuram—still more sweet.    Madhya 21.136, Madhya 23.35

Can't find any compound Sanskrit words containing madhuram.