Jaanus

Jaanus is an Estonian masculine given name derived from the Latin Janus, the ancient Roman god of beginnings, gates, and transitions, whose name is itself connected to the Latin word for door or passage. The name entered Estonian use as a vernacular form of the Latinate Johannes tradition, though its sound reflects the influence of the Roman divine name rather than the Hebrew roots of Johannes. It remains a distinctly Estonian form, related to the widespread European cognates Jan, Johannes, and John.