To change or modify in any way for the better

To change, to revise, usually to the wording of a written document. (www.lawinfo.com/lawdictionary/#c)

Changes in the wording of a bill are called amendments. Amendments may add language, strike out existing language or change language to other words.

To correct an error, modify or alter a legal document.

by supplying deficiencies;

by substituting something else in the place of what is removed; to rectify.

To grow better by rectifying something wrong in manners or morals; to improve.

set straight or right; "remedy these deficiencies"; "rectify the inequities in salaries"; "repair an oversight"