Meaning of the Sanskrit Word: samstuvatah

  saṁstuvataḥ—of Dakṣa, who was offering prayers    SB 6.4.35-39
  saṁstuvataḥ—being prayed to    SB 9.5.12
  saṁstuvataḥ—offering prayers    SB 9.14.42

Can't find any compound Sanskrit words containing samstuvatah.