Meaning of the Sanskrit Word: asvamedhena

  asvamedhena—by the sacrifice of asvamedha-yajna    SB 4.19.11
  asvamedhena—by the asvamedha sacrifice    SB 6.13.8, SB 6.13.9, SB 6.13.8-9
  asvamedhena—by the horse sacrifice ceremony    SB 1.12.32

Can't find any compound Sanskrit words containing asvamedhena.