sopimassa
Sopimassa is a Finnish verbal form derived from the verb sopia, which means to agree or to be suitable. It is created with the suffix -massa to form a present active participle that signifies “in the act of agreeing” or “in a state of agreement.” In standard modern Finnish, this participle is relatively rare in everyday speech and is more commonly encountered in formal, literary, or juridical writing.
As a participle, sopimassa can be used to modify nouns or to introduce a subordinate clause that
Etymology and grammar: sopimassa combines the verb stem sopi- (from sopia) with the participial suffix -massa,
See also: sopia, Finnish grammar, present active participles, -massa/-mäs participles.