Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Welsh -iadur
← Latin -ātor (cognate)

→ Welsh dyddiadur (affix)
→ Welsh cliniadur (affix)
→ Welsh cofiadur (affix)
→ Welsh cyfarwyddiadur (affix)
→ Welsh cyfeiriadur (affix)
→ Welsh haeniadur (affix)
→ Welsh trosiadur (affix)
→ Welsh tymeriadur (suffix)
→ Welsh -iaduron (compound)