Meaning of the Sanskrit Word: barhismatah

  barhiṣmataḥ—of King Prācīnabarhi    SB 4.30.7
  barhiṣmataḥ—of King Barhiṣmān    SB 4.30.46
  barhiṣmataḥ—as insignificant as a piece of grass    SB 5.14.14

Can't find any compound Sanskrit words containing barhismatah.