Crossword clues for the word: EXCATHEDRA The word EXCATHEDRA has appeared as an answer to at least 6 crossword clues on different crossword puzzles. Crossword clues for EXCATHEDRA Showing 1 to 6 of 6 results Clue(s) Authoritatively From the seat of authority Reached tax arrangement with authority With authority derived from one's position With authority: Lat. With authority.