Quartus

Quartus is a Latin name derived directly from the ordinal number 'quartus', meaning 'fourth'. In ancient Rome, it was common to name children based on their birth order, especially for boys. Thus, Quartus would typically be given to the fourth-born son in a family. This practice was not unique to Rome, but the Latin form became a proper name.

The name appears in the New Testament, specifically in the Epistle to the Romans (Romans 16:23), where a man named Quartus is mentioned as a Christian living in Corinth and sending greetings to the Roman church. This biblical association helped to preserve the name's usage, particularly in early Christian communities, though it never achieved widespread popularity outside of specific historical or religious contexts.