Dictionnaires de langue et spécialisés (incl. Dal', Ožegov, Ušakov), dictionnaires encyclopédiques, encyclopédies anciennes (incl. Brokhaus & Efron), 19e-début 20e s.
Digital edition of the complete contents of the Royal Irish Academy's Dictionary of the Irish Language based mainly on Old and Middle Irish materials (23 fasc., 1913-1976)