adverb or adjective Etymology: New Latin, literally, from the chair Date: 1693 by virtue of or in the exercise of one's office or position
EX CATHEDRA
Meaning of EX CATHEDRA in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012