Lewis Short
(adjective) : prīmordĭālis, e, primordia
* That is first of all, original, primordial (eccl. Lat.): lex,Tert. adv. Jud. 2: causa,Amm. 30, 1.—Adv.: prīmordĭālĭter, from the beginning, originally (post-class.): in regiones suas, unde primordialiter exsistunt, corpore naturaliter feruntur,Claud. Mamert. Stat. Anim. 2, 5; Aug. Trin. 3, 9.
Charlton T. Lewis, Charles Short, A Latin Dictionary