This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. A prolonged session, as for discussion.

n. A formal meeting, especially of a judicial or ecclesiastical body.

n. Those people present at such a meeting.

n. A sitting, as of a court or other body.

n. There sat: a word used in minutes of the meetings of courts and other bodies in noting that such and such members were present and composed the meeting: as, sederunt A. B., C. D., etc. (that is, there sat or were present A. B., C. D., etc.).

n. n. A single sitting or meeting of a court; also, a more or less formal meeting or sitting of any association, society, or company of men.

n. A Scotch statute of 1692 relating to the formalities of publicity in conveying lands.

"The Ballot Question — oldest of dialectic nightmares — is often found astride of a somnolent sederunt."

acts of sederunt   

organising    parlement    rubdown    dutifulness    rice-field    collator    scrying    wheelbarrow    salacity    aduise