Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
English ator

→ English commentator (suffix)
→ English negotiator (suffix)
→ English procurator (suffix)
→ English conjugator (suffix)
→ English geolocator (suffix)
→ English stellarator (suffix)
→ English sequestrator (suffix)
→ English Selenator (suffix)
→ English Arianator (suffix)
→ English recombinator (suffix)
→ English plasticator (suffix)