ianus

From Proto-Italic *jānos, from Proto-Indo-European *yeh₂- (“to go, go in, travel”). Cognate with Sanskrit यान (yāna, “path”).

• (Classical Latin) IPA^(key): [ˈjaː.nʊs]
• (modern Italianate Ecclesiastical) IPA^(key): [ˈjaː.nus]

iānus m (genitive iānī); second declension

1. arcade; covered passageway

Second-declension noun.

• iānua
• iānuārius
• Iānus

• "ianus", in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
• “ianus”, in Harry Thurston Peck, editor (1898), Harper’s Dictionary of Classical Antiquities, New York: Harper & Brothers
• “ianus”, in Samuel Ball Platner (1929) Thomas Ashby, editor, A Topographical Dictionary of Ancient Rome, London: Oxford University Press