IPA: /ˈdɒkjʊˌmɛntə/
KK: /ˈdɑk.jə.ˌmɛn.tɚ/
A person who creates or keeps records of information, events, or processes.
The documenter carefully recorded all the details of the meeting.
Documenter → It is formed from "document" (from Latin "documentum", meaning a lesson or proof) and "-er" (meaning a person who). A documenter is a person who provides or creates documents, serving as a source of information or proof.
Think of a person who creates or provides a 'lesson' or 'proof' (from 'document') — that's what a documenter does.