IPA: /əˈmɪtə/
KK: /əˈmɪtər/
A person who leaves something out or does not include it.
The omitter of the important details caused confusion in the report.
Omitter → It is formed from "omittere" (meaning to let go or pass over) and the suffix "-er" (meaning a person who). The word "omitter" refers to a person who lets something go or passes over it, often in the context of leaving something out.
Think of someone who 'lets go' ('omittere') of something or 'passes over' it — that's why an omitter is a person who leaves something out.