^MacBain, Alexander. (1982:§1) An Etymological Dictionary of the Gaelic Language Gairm Publications.
^eDil - Letter A, Column 280[永久失效連結] - Entry for aittrebaid in thee-Dictionary of the Irish Language - Header image: Folio 154 r, MS. 23 P 12 (Book of Ballymote) - by permission of the Royal Irish Academy - Image courtesy of the Irish Script on Screen.
^Xavier Delamarre, Dictionnaire de la langue gauloise, éditions errance 2003. p. 300.
^Albert Dauzat and Charles Rostaing, Dictionnaire étymologique des noms de lieux en France, éditions Larousse 1968. p. 29.
^Wenceslas Kruta, Les Celtes : Histoire et dictionnaire, Collection Bouquins - Robert Laffont, Paris 2000. p. 438 - 439.