From *ritus (“ford”) from Proto-Celtic *ɸritus + *magos (“field”). *<span class="searchmatch">Ritumagos</span> Radepont (a city in modern France) → Latin: Ritumagus ^ Matasović, Ranko...
*Bardomagos *Blatomagos *Brocomagos *Gabromagos *Lutomagos *Rigomagos *<span class="searchmatch">Ritumagos</span> *Rotomagos ^ Matasović, Ranko (2009) “*magos-”, in Etymological Dictionary...