A more thorough explanation:

Definition: A maintainor is a person who interferes in someone else's legal case by providing financial or other support. This is considered illegal and is known as maintenance.

Example: John is going through a divorce and his friend, Tom, offers to pay for his legal fees. Tom is now considered a maintainor because he is providing financial support to John's case.

Explanation: In this example, Tom is interfering in John's legal case by providing financial support. This is considered illegal because it can influence the outcome of the case and is known as maintenance. A maintainor can be anyone who provides support, whether it be financial or otherwise, to someone else's legal case.