Emeterius

Emeterius is the name of a Roman legionary who was martyred around 300 CE and is now a Catholic Saint. He is one of the patron saints of the city of Calahorra, La Rioja, and the city of Santander in Cantabria, Spain is named after him.

Emeterius is from the same root as emeritas, an honorary title bestowed on a retired dignitary, usually in academia. Emeterio is the Spanish version.