1551, "act of publishing," from L.
editionem (nom.
editio) "a bringing forth, producing," from stem of
edere "bring forth, produce," from
ex- "out" +
-dere, comb. form of
dare "to give" (see
date (1)). Meaning "form of a literary work" is from 1570. "It is awkward to speak of,
e.g. 'The second edition of Campbell's edition of Plato's
"Theætetus"'; but existing usage affords no satisfactory substitute for this inconvenient mode of expression" [OED].
Edit is 1791, probably as a back-formation of
editor (1649), which, from its original meaning "publisher" had evolved by 1712 a sense of "person who prepares written matter for publication;" specific sense in newspapers is from 1803.
Editorial "newspaper article by an editor" is Amer.Eng. 1830. Hence,
editorialize (1856), "introduce opinions into factual accounts."