https://www.britannica.com/topic/Janus-Roman-god

Janus, in Roman religion, the animistic spirit of doorways (januae) and archways (jani). Janus and the nymph Camasene were the parents of Tiberinus, whose death in or by the river Albula caused it to be renamed Tiber.

https://en.wiktionary.org/wiki/ianua#Latin

https://commons.wikimedia.org/wiki/Arco_di_Giano

Stacker Saloon

saloon

January is named after Janus: https://www.britannica.com/topic/Janus-Roman-god

https://cdn.britannica.com/01/10701-004-D51B7F93/god-coin-beardless-Janus-Roman-Bibliotheque-Nationale.jpg?w=300

> Janus, in Roman religion, the animistic spirit of doorways (januae) and archways (jani). Janus and the nymph Camasene were the parents of Tiberinus, whose death in or by the river Albula caused it to be renamed Tiber.

https://en.wiktionary.org/wiki/ianua#Latin
https://commons.wikimedia.org/wiki/Arco_di_Giano

https://upload.wikimedia.org/wikipedia/commons/thumb/8/80/Arco_di_Giano.jpg/1280px-Arco_di_Giano.jpg