The language of the ogam inscriptions is the oldest form of Goidelic with which we are acquainted.
On two corners of the stone are inscriptions of the usual ogam characters.
It may, however, be regarded as certain that the ogam script was never employed in early times for literary purposes.
The inscriptions upon such stones, when they are inscribed, are usually in ogam or Runic characters.
And he wrote these quatrains in ogam, and then bade them farewell.
With regard to the ogam inscriptions we cannot make any confident assertions.
It bears an ogam inscription on two angles of the same face, and debased Roman characters on the front and back.
This he accomplished by means of four wands of yew inscribed with ogam characters.
Wherever the Irish Gael planted a colony, he seems to have brought his ogam writing with him.
ogam is an alphabet suitable enough for chiselling upon stones, but too cumbrous for the purposes of literature.
also ogam, ancient Irish form of writing, 1620s, from Irish ogham, from Old Irish ogam, said to be from name of its inventor, Ogma Mac Eladan. But this appears to be from Celt. *Ogmios, perhaps from PIE *og-mo- "furrow, track," thus metaphorically "incised line." This could be the source of the name of the writing style, which looks like a series of cuts or incised lines, and the inventor's name thus might be folk etymology. Related: Oghamic.