(1):

(n.) The course of procedure in the prosecution of an action at law.

(2):

(n.) The act of one who proceeds, or who prosecutes a design or transaction; progress or movement from one thing to another; a measure or step taken in a course of business; a transaction; as, an illegal proceeding; a cautious or a violent proceeding.

(3):

(p. pr. & vb. n.) of Proceed