A more thorough explanation:

Definition: To show, indicate, or reveal.

Example: In abstaining from the vote, Hariden evinced misgivings about the nomination.

This means that Hariden showed or revealed that he had doubts or concerns about the nomination by choosing not to vote.

Definition: The act of withdrawing a case from an inferior court and bringing it before a superior court.

Example: In French law, evocation is the process of moving a case from a lower court to a higher court.

This means that if someone is not satisfied with the decision made by a lower court, they can request to have the case moved to a higher court for further review.