> Achren, Dennis, is the 17th century MS. Peniarth 98b pp. 81-82.
What text and what manuscript is this? This is not Kat Godeu. KG is
in Llyfr Taliesin, which is Peniarth 2.
So let's recapitulate what we have so far:
1. An word "achrann" (or "eachrann") that is only attested in the
modern Gaelic languages. It's not clear if it existed in OIr. and
what it would have looked like then. It could be OIr. *achrann, but
it could also be *echrann or conceivably also *fochrann, although a
number of difficulties beset the latter form.
2. There is the Welsh name of a lady, "Achren", whose relationship to
KG has remained unclear so far. She does not figure in the poem KG.
Even more so, KG is a notoriously obscure piece of poetry that treats
a number of quite diverse subject matters. A tree-battle is only one
of those. There is no reason to suppose that just about any word
occurring in KG (let alone names that may have some vague connection
with KG) must have an arboreal significance.
3. Irish "achrann" and Welsh "Achren" cannot be etymologically
related, unless one is a loan from the other, for which, however,
there is not even the tiniest shred of evidence.
So, what exactly do you want to prove?
> Strange that you should pass along Haycock's rendering of Nefenhir! I
> had addressed that issue with Dr. Isaac Graham (now at the National
> University of Ireland, Galway) a long time ago, in the context of
> Nefen(Hir) possibly relating to the Novantae tribe of SW Scotland.
> His response? Absolutely impossible.
It is true that the derivation from the Nouantes has its formal
problems, but it surely is not "absolutely impossible". They can be
overcome by assuming a modest amount of hypercorrect or archaising
> When I asked about Nefyn, found
> in the place-name on Lleyn (a name derived either from the Laighin or
> Ui Leithain who settled there), and the Nefyn paired with Urien of
> Rheged, who said that absolutely this name was cognate with Irish
Yet this says nothing about Nefenhir (or Nefenhyr). Is there a
tradition about a figure called Nefyn Hir?