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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.]


(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]


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]

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
References in periodicals archive ?
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.
Ogham provided O'Doherty with an elegant way to combine his interest in minimal forms and language--to give a voice to pattern.
The Ogham tattoos organically link them to the Dark King, Irial, and inscribe his orders--and intention "to intimidate" (Ink 33)--on their skins.
This has led to my involvement with the beginnings of language, early man-made marks and the Ogham and Bardic alphabets.
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.
Ogham gleanings from an Irish manuscript in the Swiss city of St Gallen.
Practicing Druid witch and Celtic shaman Danu Forest presents Celtic Tree Magic: Ogham Lore and Druid Mysteries, a guide to the ogham tradition of Celtic spiritual practice.
Parts of the sculpture are inscribed in Ogham Script, which is known as the alphabet of the Pictish people.
The key to the rude Ogham inscriptions, found in various parts of Ireland, and in which no distinction of words could at first be traced, was, by a strict application of this principle, recovered.
The "Note to the Reader" presents the Ogham "Tree Alphabet," a central backdrop for the story, and McQuerry invites the reader to decipher Ogham messages she leaves on the bottom of pages.
Ash is part of its Ogham series which uses the ancient Celtic writing on the bottle label.