Authie is located some 6 km (4 mi) north-west of the centre ofCaen. Access to the commune is by road D220 fromVillons-les-Buissons in the north-east which passes through the centre of the commune and the village and continues toCarpiquet in the south. The D220C also goes south-east from the village to the urban area of Caen. There are also the hamlets of Hameau de Saint-Louet, Franqueville, Fermie du Calvaire, and Cussy in the commune. Apart from the large residential area the commune is entirely farmland.[4]
The name of the town is attested in the formsAlteium in 1227 andAuteya in 1264.[5]
Albert Dauzat matchedAuthie withAuthie in Somme department (Altegiam 830) on the coastal riverAuthie (Alteia 723) and considers it primarily as a hydronym but does not provide any further explanation.[6]
According to René Lepelley this toponym is based on the pre-Celtic elementalt in an unknown sense and is close toAuthou inPont-Authou.[7]
François de Beaurepaire sees a Gallic (Celtic) element in thealt in Authou.[8]
The Gallic termAttegia was recognized by Xavier Delamarre inAtheist-type names - e.g.Athis in the sense of "cabin or hut".[9]
This analyses toad- (pre-verb) andtegia meaning "house" (cf. Old Irishteg, old Welshtig, WelshTy, Old Bretontig, and Bretonti all meaning "house").[10]
It is likely that Authie contains the same elementtegia preceded by another prefix. From a phonetic point of view there is a palatalization of the intervocalic consonant where [g] becomes [j] and then an Amuïssement or attenuation of [j]>[∅], a recurrent phenomenon in phonetics.
The same author explains thatArthies (Artegiae 680) may come from*Are-tegia which is a possible solution for Authie, knowing that [r] regularly becomes [l] before a consonant.
The nameAltavilla is either a medieval romanization of a place namedHauteville as inHauteville inManche department and therefore does not relate toAuthie. It may be a scribal error for*Alteia Villa or*Villa Alteia which mentions a villa, i.e. a rural area in medieval Latin, in a place calledAlteia which is Authie.
^René Lepelley,Etymological Dictionary of commune names in Normandy, Charles Corlet éditions PUC 1994, p. 54b - 55a.ISBN978-2-905461-80-3(in French)
^The names of communes and old parishes in Eure, A. and J. Picard, François de Beaurepaire, preface by Marcel Baudot, 1981, Paris, 221 pages,ISBN2-7084-0067-3,OCLC9675154, p. 56(in French)
^Xavier Delamarre,Dictionary of the Gallic language, éditions Errance 2003, p. 59.(in French)