Meaning of the Sanskrit Word: tapasvinah

  tapasvinah—the great learned sages    SB 2.4.17
  tapasvinah—for a vanaprastha, one who has adopted a life of austerities    SB 7.15.38-39
  tapasvinah—the sages.    SB 8.13.34
  tapasvinah—who was such a great mystic performing austerity    SB 9.6.50
  tapasvinah—persons who are engaged in austerities    SB 10.4.40
  tapasvinah—those engaged in severe austerities and penances    Madhya 22.20

Can't find any compound Sanskrit words containing tapasvinah.