ˈjanyəˌwerē, -ri also ÷ˈjen-, dial -nəˌw- noun
( plural januaries or januarys )
Usage: usually capitalized
Etymology: Middle English Januarie, from Latin Januarius, first month of the ancient Roman year, from Janus, two-faced god or numen of gates and doors and therefore of beginnings (from janus arch, gate) + -arius -ary — more at janitor
: the first month of the Gregorian calendar — abbr. Jan. ; see month table