although they may be in part ancestral to the later Déisi Tuisceart and Dál gCais. The Déisi Muman may also have had Érainn origins, but this has long been disputed. Dáire: Darini, Dáirine It seems likely the Iverni were related to the Darini of eastern Ulster. The name "Darini" implies descent from an ancestor called Dáire, (*Dārios) as claimed by several historical peoples identified as Érainn, including the Dál Riata and Dál Fiatach in eastern Ulster as well as the Érainn of Munster. An early name for Dundrum, County Down, is recorded as Dún Droma Dáirine, and the name Dáirine was applied to the Corcu Loígde, further suggesting a relationship between the Darini and the Iverni. Érainn: Clanna Dedad The genealogies trace the descent of the Érainn from two separate eponymous ancestors, Ailill Érann and Íar mac Dedad. Legendary relatives of the latter include the Cland Dedad (offspring of Deda mac Sin), a Munster people who appear in the Ulster Cycle, led by Cú Roí, son of Dáire mac Dedad, and the legendary High King Conaire Mór, grandson of Iar and ancestor of the Síl Conairi. The historical sept of the Uí Maicc Iair ("grandsons of the son of Iar") and the MAQI IARI of ogham inscriptions also appear to be related. The personal name Iar is simply another variant of the root present in Iverni and Érainn. Finally, the name Íth, given in the genealogies as the ultimate ancestor of the Corcu Loígde (Dáirine) and offering some confusion about their parentage and relation to the Iverni, in fact preserves the same Indo-European root *peiH- ("to be fat, swell"), thus in effect completing a basic picture of the Iverni/Érainn and their kindred in later historical Ireland. O'Rahilly's theory Ivernic is a hypothetical language proposed by T. F. O'Rahilly. He suggested that it was an unattested P-Celtic (probably Brittonic) language spoken in Ireland before Old Irish. He suggested this language was spoken by the Iverni, and that they invaded Ireland from Britain, bringing with them the language. O'Rahilly identifies two words recorded in the Sanas Cormaic as coming from Ivernic: ond ("stone") and fern ("anything good"). His theory has been refuted and is not widely accepted by experts. Furthermore, by the proto-historic period, the Iverni were evidently Goidelic-speaking, as ogham inscriptions in Archaic Irish are most plentiful in southwestern Ireland, the territory of the Iverni. See also List of Irish kingdoms