psykologisiin

Psykologisiin is a Finnish inflected form of the adjective psykologinen, meaning psychological. It is used to modify a noun when the noun is in a case that requires the ending -isiin, typically appearing with plural nouns. The form reflects both number and grammatical case, and it is common in contexts discussing psychology-related topics, research, analysis, or descriptions of psychological aspects.

In use, psykologisiin appears in phrases such as psykologisiin tutkimuksiin (to/into psychological studies), psykologisiin kysymyksiin (to/into psychological questions), or psykologisiin tekijöihin (to/into psychological factors). The exact meaning depends on the sentence and the case being expressed, and the adjective agrees in gender, number, and case with the noun it modifies.

Etymology and grammar: the word derives from psykologia (psychology) and the adjectival suffix -inen, with the appropriate inflectional ending -isiin added to form the plural illative or other applicable cases. This kind of form is routine in Finnish for adjectives modifying nouns in various plural cases.

Related terms include psykologi, meaning a psychologist, and psykologia, meaning psychology. The base adjective psykologinen is used more broadly to describe something related to psychology, while psykologisiin is one specific inflected form used in plural and certain case contexts.

Overall, psykologisiin is a standard Finnish grammatical form used to express psychological relationships or aspects when the modifying noun is plural and in a case that requires the -isiin ending. It is primarily encountered in academic, scientific, and formal writing, but can appear in everyday language as well wherever psychology-related modifiers are needed.