Merriam-Webster's Collegiate® Dictionary, 11th Edition
EDIT
I. transitive verb
Etymology: back-formation from editor
Date: 1791
1. to prepare (as literary material) for publication or public presentation, to assemble (as a moving picture or tape recording) by cutting and rearranging, to alter, adapt, or refine especially to bring about conformity to a standard or to suit a particular purpose , to direct the publication of , delete , editable adjective
II. noun
Date: 1955
an instance or result of editing