Meaning of the Sanskrit Word: yasam

  yasam—of all of whom    SB 6.6.3, SB 10.6.39, SB 10.6.40, SB 10.6.39-40
  yasam—of whom (the gopis)    Adi 17.281, Madhya 9.150
  yasam—of those whose    SB 3.14.12
  yasam—from whose    SB 1.10.30
  yasam—of which    SB 5.20.16
  yasam—whose    SB 1.11.36
  yasam—of whom (the daughters)    SB 5.18.15
  yasam—of them    SB 4.3.12
  yasam—of all the rivers    SB 5.20.22

Can't find any compound Sanskrit words containing yasam.