If you amend something, you change it so that it is more correct or appropriate. Laws, documents, and statements are often amended.
1. …the power to amend legislation.
2. I merely asked if you wished to amend your statement.
If you emend a piece of writing, you change it so that a mistake is corrected. Emend is far less common than amend; you say that editors emend old literary texts.
Instead of using the verbs amend and emend, you can use ‘make an amendment’ and ‘make an emendment’.
3. Madison sent me a copy of the proposed amendments to the constitution.