Meaning of the Sanskrit Word: sighram

  sighram—very soon    SB 1.6.33, SB 1.18.18
  sighram—without the least delay    SB 1.13.18
  sighram—very swiftly    SB 10.10.6
  sighram—quickly    Antya 3.60

Can't find any compound Sanskrit words containing sighram.