Arakiba: A fallen angel named in the Book of Enoch.
According to this text, Arakiba was one of the “chiefs of tens” of the Watcher Angels. These angelic chiefs led the Watchers, or Grigori, in their task to watch over humanity in the days before the Flood. Arakiba fell through sins of the flesh, taking a mortal wife when such a union between heavenly and earthly stock was forbidden.
SOURCE:
The Dictionary of Demons written by Michelle Belanger