The early British Latin dialect probably developed similarly as the dialect of Gaul (the ancestor of Old French). In particular, Latin stressed short i developed first into close-mid /e/, then diphthongised to /ei/. The combination -ond- also developed regularly into -und- in pre-Old French. Thus, he concludes, the remaining Romans of Britain would have pronounced the name as Lundeiniu, later Lundein, from which the Welsh and English forms were then borrowed. This hypothesis requires that the Latin form have a short i: Londinium.