Family name origins & meanings
- German and Jewish (Ashkenazic) : nickname for a quarrelsome person, from Middle High German hader ‘discord’, ‘argument’, ‘quarrel’, German Hader.
- German and Jewish (Ashkenazic) : from Middle High German hader ‘tattered clothes’, ‘rags’, German Hader, hence a nickname for a scruffy person or a metonymic occupational name for a trader in rags.
- German (Häder) : variant of Heider.