Oder Family History

German: topographic name from the river of this name in central Europe denoting someone who lived on its banks.

German (Öder): variant of Eder.

Slovenian: probably a nickname for a quarrelsome person derived from Middle High German hader ‘quarrel’.

Jewish (Ashkenazic): possibly as in 1 above or from a western or northeastern Yiddish pronunciation of adar, the name of a month of the Jewish calendar.

This is considered a happy time of year mainly because the festival of Purim is celebrated during this month and because Jewish tradition has it that Moses was born in this month.