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or og·am  (ŏg′əm, ō′əm)
a. An alphabetic system of inscribed notches for vowels and lines for consonants used to write Old Irish, chiefly on the edges of memorial stones, from the fifth to the early seventh century.
b. A character used in this alphabet.
a. An inscription in the ogham alphabet.
b. A stone inscribed in the ogham alphabet.

[Irish Gaelic, from Old Irish ogom, after Ogma, name of a Celtic god; see ag- in Indo-European roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(ˈɒɡəm; ɔːm) or


(Letters of the Alphabet (Foreign)) an ancient alphabetical writing system used by the Celts in Britain and Ireland, consisting of straight lines drawn or carved perpendicular to or at an angle to another long straight line
[C17: from Old Irish ogom, of uncertain origin but associated with the name Ogma, legendary inventor of this alphabet]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


or og•am

(ˈɒg əm, ˈɔ gəm)

1. an alphabetical script used for inscriptions in an archaic form of Irish from about the 5th to the 10th century.
2. any of the 20 characters of this script, each consisting of strokes for consonants and of notches for vowels cut across a central line on a stone or piece of wood.
[1620–30; < Irish; Middle Irish ogum]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

ogham, ogam

1. an alphabetical script originally used for inscriptions in the Irish language from the 5th to the 10th centuries.
2. any of the 20 characters of this script.
3. an inscription in this script. — oghamist, ogamist, n.
See also: Writing
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.
References in classic literature ?
Men piled their grave and reared their stone on high, And wrote their names in Ogham.* So they lay All four united in the dream of death."**
As recently as the 1940s there was some faint Latin and Ogham - an early medieval alphabet - inscribed on the stone, but the Welsh weather has since removed it.
As recently as the 1940s there was some faint Latin and Ogham (a medieval alphabet) inscribed but the Welsh weather has removed it.
Most of the 180 artefacts--not all elite--bear words in Roman, runic or Ogham scripts.
This has led to my involvement with the beginnings of language, early man-made marks and the Ogham and Bardic alphabets".
Standing in for the Google 'L' is a tall stone that pays homage to Ireland's earliest form of writing: ogham.
Names such as Llyn and Dinllaen are of Irish origin, as was the kingdom of Dyfed, where there are 20 stones inscribed with letters in ogham, from Ireland.
On the reflective surfaces, O'Doherty had scored a series of lines that somewhat cryptically spelled out words in ogham, an ancient Irish alphabet consisting of lines that ran above, below, or through a centerline.
In Ink Exchange, Gabriel, who leads the Hounds from the Wild Hunt, exhibits prominent forearm tattoos written in Ogham, an ancient Celtic script.
Bob unlocked the secrets of mysterious cysts, runes and ogham stones and aired Project Lono, a collaboration with the ambient soundscapes of electronic musician SJ Forth.