Amended vs. Addended

Amended and Addended Definitions

To change for the better; improve

"The confinement appeared to have had very little effect in amending his conduct" (Horatio Alger).

Simple past tense and past participle of addend

To alter the wording of (a legal document, for example) so as to make more suitable or acceptable.

Furnished with an addendum

To enrich (soil), especially by mixing in organic matter or sand.

(organic chemistry) Furnished with an addend

To better one's conduct; reform.

That has been modified from a previous form.

We voted on the amended bill, and it passed.

Simple past tense and past participle of amend

Of legislation

Modified for the better;

His amended ways