Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Welsh -ys
← English -es (borrowed)

→ Welsh blowsys (affix)
→ Welsh garejys (affix)
→ Welsh nyrsys (affix)
→ Welsh seshys (affix)
→ Welsh cwtshys (affix)
→ Welsh switshys (affix)
→ Welsh ffensys (affix)
→ Welsh aetshys (affix)
→ Welsh slejys (affix)