Domains: Fatherhood, lineage, inheritance of name.
Era of ascension: Golden Age of Man (~170,000 years ago). Cohort: dead. Died: God War & Long Winter (~75,000 years ago), when sons did not outlive fathers and the patient generations his worship required went uncompleted.
Worshipped by: The patrilineal traditions of the Golden Age, the aristocratic houses that tracked descent in registers handed father to son, and the household head-of-table cults at every level of wealth. No living culture maintains his worship. (The worships edge is authored downstream on the worshipper, not here.)
Borráath was the household-line patrimony — the small god of the seat at the table that was occupied in turn. His worship was the lineage register: the marked page, the spoken name at the meal, the formal handing-on of the house's inherited objects when a father died and his eldest sat for the first time at the head. Where Romath was the office of kingship — institutional, public, scaled to nations — Borráath was the same shape one room across, in every household that kept any kind of record at all. His priesthood was a profession only in the aristocracies; among everyone else, the father was the priest.
The Winter ended his cult by inverting its timing. The rites required sons to bury fathers, slowly and in order; what came instead was fathers burying sons, then fathers dying alongside their unmarried daughters, then whole houses ending in a single bad month with no one to update the register. The aristocratic registers stop in mid-century, in a final hand that does not name itself. He is distinct from Romath as the household is from the throne, and from Yelláreth as the line forward is from the bearing itself; he was eaten by the same Winter, on his own slower timetable.