10 amazing videos of real ghosts caught on camera
The English word ghost continues Old English gást, from a hypothetical Common Germanic *gaistaz. It is common to West Germanic, but lacking in North Germanic and East Germanic . The pre-Germanic form was *ghoisdo-s, apparently from a root denoting fury, anger reflected in Old Norse geisa to rage. The Germanic word is recorded as masculine only, but likely continues a neuter s-stem. The original meaning of the Germanic word would thus have been an animating principle of the mind, in particular capable of excitation and fury . In Germanic paganism, Germanic Mercury, and the later Odin, was at the same time the conductor of the dead and the lord of fury leading the Wild Hunt.
Besides denoting the human spirit or soul, both of the living and the deceased, the Old English word is used as a synonym of Latin spiritus also in the meaning of breath or blast from the earliest attestations . It could also denote any good or evil spirit, i.e. angels and demons; the Anglo-Saxon gospel refers to the demonic possession of Matthew 12:43 as se unclæna gast. Also from the Old English period, the word could denote the spirit of God, viz. the Holy Ghost. (source : wikipedia