Meaning of the Sanskrit Word: ksanena

  ksanena—within a moment    SB 4.10.23, SB 9.19.24
  ksanena—at a moment's notice    SB 1.15.21
  ksanena—suddenly    SB 3.13.19
  ksanena—for such a short life    SB 5.19.23
  ksanena—in one moment    SB 5.21.19

Can't find any compound Sanskrit words containing ksanena.