puhtaaseen

Puhtaaseen is a Finnish illative singular form of the adjective puhdas (clean, pure). It expresses movement toward or into something described as clean or pure and occurs with nouns in the illative case. For example, puhtaaseen veteen means into clean water, and puhtaaseen taloon means into a clean house. The illative marks direction or goal and is one of Finnish's locational cases realized on adjectives as well as nouns, especially in descriptive or narrative contexts.

The form is built from the stem puhta- (the illative stem of puhdas) plus the illative suffix -aseen, giving puhtaaseen. The exact pronunciation follows Finnish vowel harmony and consonant rules. Although puhtaaseen is common in Finnish, it is primarily a grammatical form rather than a standalone lexical item. In everyday speech, speakers may instead use the corresponding noun phrase with a different construction, or use non-illative forms when direction is clear.

In usage, puhtaaseen can appear in both literal and figurative contexts, such as "puhtaaseen elämään" (into a pure life) or "puhtaaseen ympäristöön" (into a clean environment). The term is primarily of interest in Finnish grammar and word formation studies as an example of adjectival illative inflection.

See also: Finnish language, illative case, puhdas, puhtaus.