ex officio

viran puolesta By virtue of the office that originated it, or of the title held.

The President of the Republic of France is, ex officio, also prince of the dyarchy called Andorra.

That friend (..) added, with a smile, that he had more than once amused himself with the thought of a verbarian Attorney-General, authorized to bring informations ex officio against the writer or editor of any work in extensive circulation, who, after due notice issued, should persevere in misusing a word.