IPA: /əˈsɜːrtər/
KK: /əˈsɜrtər/
A person who states or claims something confidently.
The asserter presented strong evidence to support their claim.
Asserter → It is formed from "asserere" (meaning to affirm or declare) and "-er" (meaning a person who). An asserter is a person who affirms or declares something.
Think of someone who 'declares' or 'affirms' something — that's what an asserter does.