Meaning of the Sanskrit Word: tivram

  tīvram—dense    SB 3.26.20, SB 4.19.19
  tīvram—very severe    SB 5.11.6, SB 10.3.36
  tīvram—severe    SB 3.4.22
  tīvram—terrible    SB 3.25.41
  tīvram—with great speed    SB 4.22.34
  tīvram—very difficult to control    SB 7.9.39
  tīvrām—intense    SB 6.18.59

Can't find any compound Sanskrit words containing tivram.