Brasil, also known as Hy-Brasil and several other variants, is a phantom island said to lie in the Atlantic Ocean west of Ireland. Irish myths described it as cloaked in mist except for one day every seven years, when it becomes visible but still cannot be reached.
Etymology
The etymology of the names Brasil and Hy-Brasil is unknown, but in Irish tradition it is thought to come from the Irish Uí Breasail (meaning "descendants (i.e., clan) of Bresail"), one of the ancient clans of northeastern Ireland. cf. Old Irish: Í: island; bres: beauty, worth, great, mighty.Despite the similarity, the name of the country Brazil (Portuguese: Brasil) has no connection to the mythical islands (although J. R. R. Tolkien's essay "On Fairy Stories...