The story
- Late Latin · derived fromconsistorium“waiting room, meeting place of the imperial council”
- Old Northern French · derived fromconsistorie“secular tribunal”
- Middle English · inherited fromconsistorie
- English todayconsistory
Inherited from Middle English consistorie, from Old Northern French consistorie (“secular tribunal”) (Old French consistoire), and Late Latin consistorium (“waiting room, meeting place of the imperial council”). Meaning "Church council" is from early 14th century. By surface analysis, consist + -ory.
Etymology from Wiktionary, CC BY-SA 4.0.