sederunt

noun2

1. •
   (Scotland) A formal meeting, especially of a judicial or ecclesiastical body.

   • They held a sederunt, and were filled with tremulous joy, for, in spite of their familiarity with all the other worlds and cycles, they had a very human awe of things sent from Ghostland. — 1888
2. •
   (Scotland) Those people present at such a meeting.