to alter, modify, rephrase, or add to or subtract from (a motion, bill, constitution, etc.) by formal procedure

Congress may amend the proposed tax bill.

to change for the better; improve

to amend one's ways.

to remove or correct faults in; rectify.

to grow or become better by reforming oneself

He amends day by day.

verb

blemish , corrupt , debase , depress , harm , impair , injure , mar , reduce , subtract , worsen

verb

alter , ameliorate , better , change , elevate , enhance , fix , help , lift , make up for , mend , modify , pay one’s dues , raise , rectify , reform , remedy , repair , revise , right , square *notes:when you amend a text , you change it - usually for the better and when you emend a text , you simply correct the mistakes; whereas one can amend various aspects of conduct or behavior , emend is used if the issue at hand is that of a manuscript , speech , or literary product , meliorate , upgrade , emend , redress , emendate , revamp , rework , rewrite , correct , edit , improve , polish