8 letters · 14 points in Scrabble
noun a throne that is the official chair of a bishop
originBorrowed from Latin cathedra (“seat”), from Ancient Greek καθέδρα (kathédra, “chair of a teacher, throne”), from κατά (katá, “down”) + ἕδρα (hédra, “seat”). Doublet of chair and chaise.
Etymology from Wiktionary, CC BY-SA 3.0