↑Ernout, Alfred y Antoine Meillet (1959-1960), Dictionnaire étymologique de la langue latine: histoire des mots, 4.ª ed., 2 vols., Paris: Klincksieck, p. 604. ISBN 2-252-03359-2
↑ 2,02,12,22,32,42,52,6Glare, P. G. W. (editor, 1983) Oxford Latin Dictionary. Oxford: Oxford University Press