Meaning of the Sanskrit Word: etesam

  eteṣām—of the Pāṇḍavas    Bg 1.10
  eteṣām—of these    SB 5.1.26
  eteṣām—of all these divisions    SB 5.20.26
  eteṣām—of all of them    SB 7.13.42
  eteṣām—among them    SB 9.15.12-13
  eteṣām—of all these    SB 9.24.28-31

Can't find any compound Sanskrit words containing etesam.