(1):

(n.) That part of a legal instrument, as a commission, indictment, etc., which shows where, when, and by what authority, it was taken, found, or executed.

(2):

(n.) The act of taking or arresting a person by judicial process.

(3):

(n.) A caviling; a sophism.

(4):

(n.) The heading of a chapter, section, or page.