Meaning of the Sanskrit Word: visnau

  viñëau—unto Lord Viñëu (not to anyone else)    SB 7.5.23-24
  viñëau—unto the Supreme Personality of Godhead, Viñëu    Madhya 9.259-260
  viñëau—in Lord Viñëu, or Kåñëa    Madhya 23.8

Can't find any compound Sanskrit words containing visnau.