Cicero, etymology of names and philosophy of “to have or to be”:
But Jupiter himself — the name means ‘the helping father,’ whom with a change of inflexion we style Jove, from iuvare ‘to help’; the poets call him ‘father of gods and men,’ and our ancestors entitled him ‘best and greatest,’ putting the title ‘best,’ that is most beneficent, before that of ‘greatest,’ because universal beneficence is greater, or at least more lovable, than the possession of great wealt.