Meaning of the Sanskrit Word: usana

  uśanā—Uśanā    Bg 10.37, SB 9.23.33
  uśanā—Śukrācārya    SB 4.1.45, SB 9.18.30
  uśanā—Venus    SB 5.22.12, SB 5.23.7

Can't find any compound Sanskrit words containing usana.