Goði
Definition of goði
Definition from wiktionary: goði m (genitive singular goða, nominative plural goðar)(historical) godi, an alternate title for a jarl, invoker or invokee, chief of a þing.
A God is a force invoked by a Godi, and typically these involved incantations which were sometimes called runes. Rigsthula mentioned Jarls as being taught runes or incantations. To speak a name or word is to invoke.
A Preacher is a type of Godi.
god (n.)
also God; Old English god "supreme being, deity; the Christian God; image of a god; godlike person," from Proto-Germanic *guthan (source also of Old Saxon, Old Frisian, Dutch god, Old High German got, German Gott, Old Norse guð, Gothic guþ), which is of uncertain origin; perhaps from PIE *ghut- "that which is invoked" (source also of Old Church Slavonic zovo "to call," Sanskrit huta- "invoked," an epithet of Indra), from root *gheu(e)-"to call, invoke." The notion could be "divine entity summoned to a sacrifice."
[In modern Paganism they use libations of wine or mead as a sacrifice, in Juden-Christian spirituality they use Praise of God as the sacrifice, the offering; in a sense to say the very word ‘God’ is a sacrifice because words are fueled by food.]

