Primitive Irish is the oldest known form of the Goidelic languages. It is known only from fragments, mostly personal names, inscribed on stone in the ogham alphabet in Ireland and western Great Britain up to about the 6th century. Characteristics Transcribed ogham inscriptions, which lack a letter for the /p/ phoneme, show Primitive Irish to be similar in morphology and inflections to Gaulish, Latin, Classical Greek and Sanskrit. Many of the characteristics of modern (and medieval) Irish, such… (More on Ivernic)