Meaning of the Sanskrit Word: trasa

  trasa—fear    Antya 7.147, Antya 17.49, Antya 17.57
  trasa—fear.    Madhya 12.172, Antya 7.146
  trasa—scare.    Antya 9.99
  trasa—and fear    Madhya 6.276
  trasa—shock.    Madhya 19.201
  trasa—apprehension.    Adi 13.87
  trasa—an atmosphere of fear    Antya 2.144

Can't find any compound Sanskrit words containing trasa.