Aithriad
The Aithriad (Northian: Ai̯δri̯ō) is an invocational and laudatory poem directed to Aithar, god of light and intermediary of divine presence in the physical realm according to Ponθōiš Wiḥštō. The poem is 81 verses long, divided into 9 segments, and is usually sung by the assisting priest with one step on the consecrated ground. It is part of the service liturgy and prefaces the core of the liturgy that begins with the consecration of the sacraments.
The language of the Aithriad is considered to exemplify a form of Epic Northian that is polished and standardized. The text is notably free of Galicisms, which are intentional or inherited archaicisms, often deployed for stylistic effects, complicating the grammar. Based on this fact, the poem is dated to just before the Migration Period and later than most of the epics.