Beag

In Irish mythology, Bec (modern Irish Beag, meaning "small") was one of the Tuatha Dé Danann. She was known for having a magic well, that would grant wisdom with one drink and foretelling for a second.¹ The well was guarded by her three daughters. When Fionn mac Cumhaill approached the well to ask for a drink, her daughters tried to prevent him from getting the water; "one of them threw water over him to scare him away and some of it went into his mouth. From the water he gained wisdom."²

References

Augusta Gregory (June 2012). Gods and Fighting Men: The Story of the Tuatha de Danann and of the Fianna. ISBN 9781775458432. Retrieved 27 October 2018.
Ellis, Peter Berresford (1987), A Dictionary of Irish Mythology, Oxford: Oxford University Press, p. 40, ISBN 0-19-282871-1

[1] Augusta Gregory (June 2012). Gods and Fighting Men: The Story of the Tuatha de Danann and of the Fianna. ISBN 9781775458432. Retrieved 27 October 2018.

[Ellis-2] Ellis, Peter Berresford (1987), A Dictionary of Irish Mythology, Oxford: Oxford University Press, p. 40, ISBN 0-19-282871-1

1

2