Natal Astrology - The branch of Astrology dealing with specific persons and determining their future and temperament from the placement of the Celestials at their moment of birth.

Native - The person whom the Nativity is cast after.

Nativity - The birth time of an individual (or their chart).

Occidental - When a Planet is West from the Sun or it rises after it.

Och - The Olympic spirit of the Sun.

Orb - A degree of influence allotted to each of the Planets.

Olympic Spirits - A group of Spirits or Intelligences that rule over the seven Planets. They have the power to direct the powers of each of the Planets.

Ophiel - The Olympic spirit of Mercury.

Opposition - The most malevolent aspect two Planets can be in.

Oriental - When a Planet is East from the Sun or it rises before it.