IPA: /ˈɛdɪtə/
KK: /ˈɛdɪtər/
A person who is responsible for preparing written material for publication, including making corrections and improvements.
The editor reviewed the manuscript before it was published.
Editor → It is formed from "edit" (from Latin "editus", meaning to bring forth or produce) and "-or" (meaning one who). The word "editor" refers to one who brings forth or produces written content.
Think of someone who 'brings forth' ('editus') written material — that's why an editor is someone who produces or prepares text.