osapuoleen
Osapuoleen is the illative form of the Finnish noun osapuoli, meaning the party in a legal or contractual context. It is used to refer to the party to whom rights, obligations, or notices are addressed or directed, such as in contracts, court documents, or mediation papers. The form signals direction toward a specific party in a dispute or agreement and is typical of formal Finnish rather than everyday speech.
In legal and administrative texts, osapuoleen appears in clauses that designate actions, communications, or decisions intended
Etymologically, osapuoleen is formed from the base osapuoli with the illative suffix -een, following standard Finnish
Notes of usage emphasize that osapuoleen is preferred in formal texts when pointing to a single party.