Meaning of the Sanskrit Word: upadhavat

  upadhavat—he worshiped    SB 4.7.56
  upadhavat—worshiped    SB 4.8.74
  upadhavat—immediately went    SB 8.17.21
  upadhavat—offered prayers    SB 10.3.23

Can't find any compound Sanskrit words containing upadhavat.