I've always considered that Ogham and achu mean that the inscribed strokes
of the Ogham have blended into the stone upon which they are carved.
On Fri, Sep 23, 2016 at 2:00 AM, David Stifter <[log in to unmask]>
> What I write here is extremely speculative: ogam is cognate with Gr. ὄγμος
> "furrow", Ved. ájma- "track", and it is likely that its original meaning
> was "furrow" although it is no longer used in that sense in Irish. achu
> apparently means nothing as such, but it could be aMiddle or Modern Irish
> mis-spelling for OIr. achad "pasture". Adding one and one, we get "until
> furrow and pasture are combined". In an agrarian society this is probably
> as absurd as having night and day together. Either you use a piece of land
> as a pasture or for crops, but you can't have your cake and eat it.
> -----Original Message-----
> From: Old-Irish-L [mailto:[log in to unmask]] On Behalf Of
> Helen McKay
> Sent: Freitag, 23. September 2016 06:14
> To: [log in to unmask]
> Subject: [OLD-IRISH-L] ogham agus achu
> Hello all
> I have a question if I may, would anyone have any clues about what 'ogham
> agus achu' means?
> Its from the story where Manannan is telling Angus how to trick Elcmar out
> of the Bru. There is another story that revolves around the idea of a day
> and night being all of time, and this is version seems to be along similar
> lines, where the end of time is referred to. (I've lifted this from
> mythicalireland website)
> In the tale Altram Tighe Dá Mheadar (The Fosterage of the House of Two
> Vessels), Manannán advises Oengus on how to take Newgrange from Elcmar:
> "Command him not to come (again) to the house from which he departs until
> ogam and achu are mingled together, until heaven and earth are mingled
> together, and until the sun and moon are mingled together."
> So the heaven and earth, sun and moon, are really typical elements found
> throughout Celtic lore, but what is the ogam and achu that seem to suddenly
> be part of the same conceptual space? And not only that, but so important
> that the idea leads it off. Presumably 'ogam' refers to the ogam
> alphabet, although eDIL says that in later usage it can also refer to the
> bardic written language in general. But what relevance does that have to
> the end of time? And eDIL only refers to this one instance of 'achu' with
> a question mark:
> dil.ie/218 ?ACHU n fuagair do na tigeadh don tigh o teid no gu
> cumusgti ogham ┐ a.¤ re cheile, Ériu xi 190.32 .