Meaning of the Sanskrit Word: vidmahe

  vidmahe—we know    Madhya 8.147, Madhya 9.114, Madhya 24.54
  vidmahe—I can understand.    SB 4.20.29
  vidmahe—know    SB 7.6.29-30
  vidmahe—understand    SB 8.5.31

Can't find any compound Sanskrit words containing vidmahe.