the ninth month of the year, having 30 days: abbrev. Sept, Sep, or S
Origin of SeptemberMiddle English and Old French Septembre from Classical Latin September from septem, seven (+ -ber from uncertain or unknown; perhaps ): so named as the seventh month of the ancient Roman year, which began with March
The ninth month of the year in the Gregorian calendar. calendar
Origin of SeptemberMiddle English Septembre from Old French from Latin September the seventh month from septem seven ; see sept&mlowring; in Indo-European roots.