Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Middle Welsh ar
Proto-Brythonic *ar (inherited)
Proto-Celtic *ɸare (inherited)
Middle Welsh arnaf (link)
Middle Welsh arnat (link)
Middle Welsh arnaw (link)
Middle Welsh arnei (link)
Middle Welsh erni (link)
Middle Welsh arnam (link)
Middle Welsh arnawch (link)
Middle Welsh arnunt (link)
Middle Welsh ar hynny (link)
Middle Welsh y ar (link)

Welsh ar (inherited)