IPA: /əˈfaɪənt/
KK: /əˈfaɪənt/
A person who formally declares something in writing and signs it, usually for legal purposes.
The affiant signed the document in front of a notary public.
Affiant is derived from the Latin word "affidare" (meaning to pledge or to swear) and the suffix "-ant" (indicating a person who performs an action). The word "affiant" refers to a person who makes a sworn statement or declaration, typically in a legal context.
Think of someone who 'pledges' or 'swears' to tell the truth — that's what an affiant does.