GASTROMANCY is an ancient form of ventriloquism whereby the voice is lowered to a sepulchral tone and prophetic utterances are delivered in a trance state.
GELOSCOPY is the divination from the tone of someone’s laughter.
GENETHLIALOGY is divination by the influence of the stars at birth.
GEOMANCY is the study of figures on the ground and the influence of the Earth’s “currents”.
GRAPHOLOGY is the analysis of character through handwriting.
GYROMANCY is a divination procedure where a person walks in a circle marked with letters until they become dizzy and stumble at different points, thus spelling out a prophecy.