Janus, the Roman god associated with doorways and beginnings, gives January its name in New Year’s traditions.
Janus was traditionally depicted with two faces, one looking forward and the other backward. This imagery connected him with transitions, passages, entrances, exits, and the act of looking from the past toward the future. The Latin name for January, Ianuarius, derives from his name.
The Romans associated the beginning of January with fresh starts and official changeovers. The month followed December in the Roman calendar and became the opening month of the civil year. Roman consuls entered office on January 1, strengthening the date’s administrative importance.
Janus was not simply a god of time. His role centered on thresholds and change, which made him especially relevant to any new beginning. Modern New Year’s customs do not constitute direct worship of Janus, but the month’s name preserves his connection to the season. The English word “January” passed through Old French and Middle English forms from Latin.