Abstract
The relation-complement types of noun modifying clause constructions are composed of head nouns which indicate some relational notions and modifying clauses that complement them. There are two sub-types of those modifying clauses: mono-type, in which the clauses express mono or 'substances', and koto-type, in which the clauses express koto or 'matters.' In Heian period Japanese, the mono-type had more usages than the same type in Modern Japanese. In the Old Japanese, there were juntai-nominal clauses (headless nominal clauses) that also had two parallel types: mono-type and koto-type. In this paper, I demonstrate that the existence of mono-type juntai-nominal clauses enabled a relation-complement type expression which is not used in Modern Japanese.
