Meaning of the Sanskrit Word: apatat

  apatat—fell down.    SB 1.13.33, SB 3.19.3, SB 3.19.26, SB 6.14.46, SB 10.6.13
  apatat—fell    SB 8.12.33, SB 9.21.35
  apatat—lay down for passing away.    SB 1.9.1
  apatat—he fell down    SB 3.21.12
  apatat—immediately fell dead.    SB 8.9.25
  apatat—falling like a meteor    SB 8.11.31
  apatat—did fall down.    SB 10.11.24
  āpatat—flying toward him    SB 6.12.3
  āpatat—forcefully came there    SB 9.15.32

Can't find any compound Sanskrit words containing apatat.