What is the term for an innkeeper in ancient Rome?

The term for an innkeeper in ancient Rome is "caupo." This word specifically refers to someone who manages or owns an inn, providing lodging and food to travelers. The role of the caupo was significant in Roman society, especially given the extensive travel networks and the importance of commerce and movement throughout the empire.

The other terms, while they relate to different professions in ancient Rome, do not describe an innkeeper. A nomenclator was a slave or servant who accompanied a prominent person to remind them of names and important details. A publicanus was generally a tax collector or a contractor, often associated with the collection of taxes and public works. A carnifex referred to an executioner or butcher, which is far removed from the hospitality-related duties of a caupo. Understanding these distinctions highlights the diverse roles within Roman society and their respective terminologies.