Meaning of the Sanskrit Word: istva

  istva—after worshiping    Bg 9.20, SB 3.14.9, SB 4.9.24, SB 9.2.35-36
  istva—worshiping    SB 4.8.21, SB 6.13.7, SB 6.13.21, SB 6.18.66-67
  istva—after performing    SB 4.3.3

Can't find any compound Sanskrit words containing istva.