kerääviin
Kerääviin is a Finnish inflected form that derives from the verb kerätä, meaning to collect. It is the illative plural form of the present active participle keräävä, which translates roughly as “collecting” or “gathering.” As a participial adjective, kerääviin functions to describe nouns, but it must agree with the head noun in number and case. In this case, the illative plural ending is -iin, so keräävä becomes kerääviin when the modified noun is plural and in illative case.
Kerääviin is used to describe entities or items involved in collecting, specifically when the described noun
Kerääviin is formed from kerä-, the stem of kerätä, plus the present participle suffix -vä to yield
Finnish grammar, participles, illative case, Finnish adjectives.