(June 30, 2023, updated October 2, 2024) Charlotte Guest writes this about the early European texts deriving from royal courts:
The Mabinogion is the title Charlotte Guest gave to her book in which she collected and translated these middle Welsh romance tales. This book was published in 1848.
But, the book of Taliesin was not a part of the oldest set of texts. The manuscript from which that story comes is quite late in date, possibly from the 1500's or 1600's. It is comprised of two parts--the Story of Gwion Bach, and the Story of Taliesin, both of which are sometimes found without the other. Lady Guest's version was derived from Iolo Morgannwg's copy.
https://www.gutenberg.org/files/5160/5160-h/5160-h.htm
http://www.ancienttexts.org/library/celtic/jce/mabinogion.html
Book of Taliesin:
https://www.ancienttexts.org/library/celtic/jce/taliesin2.html
https://www.ancienttexts.org/library/celtic/jce/taliesin1.html
Cerridwen
https://www.ancienttexts.org/library/celtic/jce/cerridwen.html
(June 29, 2023, updated April 8, 2025) Linguistic scholar's of the past divided Europe into 3 parts based upon language:
Today we know that these language differences arose from each having different mixing ratios and mixing histories between Indo-European and Neolithic farmer Akkadian. The Celtic languages are further divided into Goidelic or Gaelic (Irish, Manx and Scottish) and Brythonic (Welsh, Cornish and Breton). The Brythonic languages have more Latin influences than Gaelic. English was also a late developing language resulting mostly from later Germanic/Norse (Frisian, Anglo-Saxon) being mixed with Norman (Norse, French).
Welsh stabilized as a language only after the Roman Christian Normans conquered the region and were able to suppressed Druid Akkadian. Only then did the locally spoken folk language of old Welsh start to be written and be standardized by the bards. (In the same way English was standardized by the King James Bible and Shakespeare)
The deities and other characters of these bardic tales were either invented by the bards or they adopted them from the the existing folk-religion phrases. All of them refer back to ancient Druid cultures. In either case their bardic mentions are the first time they appear in history.
-n is an Akkadian noun suffix indicating that the a person's divine powers are meant instead of the persona. When used by itself it also mean "form revelations." So when /n/ is found on the end of modern words it can often be interpreted both ways unless the word ends in a double /n/ like Rhiannon.
Rhiannon = RY.N which means "Shepherd's Revelations" in which shepherd is the Druid Akkadian epithet for a magic crafter, that is, one who works with motion powers. Shepherds are the witches, wizards, and shamans. Rhiannon represents their powers of revelations and divination.
Taliesin = T.LY.S which means "Astrology-Magic's Plans from The-Woman" in which "The Woman" is an epithet for celestial light goddess Selu (Selene) who is the feminine magical motion source power. The magic-crafter Ceridwin hires the boy Taliesin to keep a magical cauldron boiling. The potion being boiled was going to be given to her son to give him her powers of wisdom and enlightenment but Taliesin accidentally drinks some instead. This causes him to become a famous bard and the patron power behind all bards.
Annwn = AN.NW which means "Considerations of Abandonment" = Considerations are focused emotions and are central to emotion magic crafting.
Mabinogi = MB.IN.G which means "Mobilizing.Moon-eye's.Energy" in which the "moon eye" is the dark new moon god and eye-pupil god Su.
Arianrhod = AR.IN.RḪ.D which means "Controlling Moon-eye's Anointing of Manifestations" in which the Moon-eye is the dark new moon god Su. Arianhod is the concept in which the motion powers authorize the manifestation of life powers.
Ceridwin, Cyrrdven, but most properly Kerdwin or = K.RD.UY which means (one who) "Involves the drivers with curses" in which the drivers are the motion powers. So she was an evil witch character.