Meaning of the Sanskrit Word: somasya

  somasya—of soma-rasa    SB 9.3.12, SB 9.3.26
  somasya—of the moon    SB 5.24.2
  somasya—of the nectar    SB 8.10.19-24
  somasya—of the soma-rasa    SB 9.3.24
  somasya—of the moon-god    SB 9.14.1
  somasya—this son belongs to Soma, the moon-god    SB 9.14.13

Can't find any compound Sanskrit words containing somasya.