What is "seizes"

Usage examples of "seizes".

The injured husband goes through all the emotions of jealousy, until conviction seizes on his mind, and then, in a frenzy of rage and indignation, he awakens his guilty wife to tell her that he knows her guilt and to threaten her with his vengeance.

If a panic seizes his soldiers, he rushes to the front, and either leads them back to combat, or takes his own life.