EDA-BEA/HEpOl: Epigraphical Database Alcalá / Berlin Epigraphica Archive / Hispania Epigraphica Online. University of Alcalá / Universidad de Alcalá. Alcalá de Henares, Madrid, Spain. https://eda-bea.es/ .
EDH: Epigraphische Datenbank Heidelberg. Heidelberg University / Ruprecht-Karls-Universität Heidelberg. Heidelberg, Baden-Württemberg, Germany. https://edh.ub.uni-heidelberg.de/ and https://edh.ub.uni-heidelberg.de/inschrift/suche .
EDCS: Epigraphische Datenbank Clauss-Slaby. Universität Zürich. Switzerland. http://www.manfredclauss.de/ and https://edcs.hist.uzh.ch/de/ and https://edcs.hist.uzh.ch/en/search .
BDHESP: Banco de Datos Hesperia de Lenguas Paleohispánicas, III. Onomástica Paleohispánica, I. Antroponimia y Teonimia, 1. Testimonios epigráficos latinos, celtibéricos y lusitanos, y referencias literarias. José M. Vallejo. 2016. Universidad del País Vasco / Euskal Herriko Unibertsitatea. Spain. ISBN: 978-84-9082-306-4. https://josemariavallejo.weebly.com/publicaciones.html and https://web-argitalpena.adm.ehu.es/listaproductos.asp?IdProducts=UHPDF163064&titulo=Banco%20de%20Datos%20Hesperia%20de%20Lenguas%20Paleohisp%E1nicas%20(BDHESP).%20III.%20Onom%E1stica%20paleohisp%E1nica.%20I.%20Antroponimia%20y%20teonimia.%201.%20Testimonios%20epigr%E1ficos%20latinos,%20celtib%E9ricos%20y%20lusitanos,%20y%20referencias%20literarias .
The native names recorded on the inscriptions from Ig are important in still another respect. Many of them are not Celtic at all but belong to the North- Adriatic onomastic system. In the anthroponymy of Ig these names are about as frequent as the Celtic ones, and it is thus impossible to decide by purely quantitative criteria which of them originally belong to the onomastic system of Ig and which entered it under foreign influences.
But there is one essential difference between the Celtic and the North-Adriatic names in the anthroponymy of ancient Ig. The latter are much more integrated into derivational families than the former. Many North-Adriatic names are derived from the same stems by different devices : Bucca, Buccicu, Buco, Buccio, Buccirega; Enna, Ennia, Enno, Enico, Enignus, Eninna; Laso, Lasaiu, Lascontia; Voltanis, Voltarenis, Voltaron-, Voltaront-, Voltaronitia, Voltarotia, Voltia, Voltielus, Voltilius, Voltognas, Voltrex, Voltuparis. This means that the North-Adriatic names are better integrated into the onomastic system of ancient Ig and can therefore be regarded as its original component.
Source: Ancient Languages of the Balkans. Radoslav Katicic. 1976. The Hague, Netherlands.
In the book 'Ancient Languages of the Balkans', Radoslav Katicic argues that when a personal name is found integrated into derivational families by being derived from the same stem by different devices, it means it is integrated into the ancient onomastic system of a place and can therefore be regarded as an original component of that onomastic system.
He provides three examples as four different name families:
This argument therefore can be used to argue that the Celt-stem is original to Lusitania and Western Iberia, given the following western Iberian or Portugalician variants: Celt, Celti, Celtius, Celtio, Celtica, Celtico, Celtici, Celtienus, Celtiatus, Celtiati, Celtiatis, Celtiatici, Celtigun, Arcelti(us), Concelti(us).
Source: Koch, John T. Common Ground and Progress on the Celtic of the south-western (s.w.) inscriptions, 2019, page 54.
Source: Celtic and Celtiberian in the Iberian peninsula By Eugenio R. Luján.
Source: Antroponimia indigena de la Lusitania romana by Jose Maria Vallejo Ruiz.