A more thorough explanation:

Sist (sist) is a legal term used in Scots law. It has two meanings:

1. Intervention in legal proceedings as an interested third party, for example, a trustee.
2. An order staying or suspending legal proceedings. This is also known as supersedere.

Sist (verb) is also used in Scots law. It means:

1. To bring into court; to summon.
2. To stay (a judicial proceeding, etc.), especially by court order.

Example 1: A trustee may request a sist in a legal proceeding to protect the interests of the trust.

Example 2: The court issued a sist on the case until further evidence could be presented.

Example 3: The lawyer requested a sist to delay the trial until their client could gather more evidence.

These examples illustrate how a sist can be used to either intervene in legal proceedings or to suspend them temporarily. In example 1, the trustee is using a sist to become involved in the legal proceedings as a third party. In examples 2 and 3, the court and the lawyer are using a sist to delay the legal proceedings until more evidence can be gathered or presented.