keskustesse
Keskustesse is not a recognized word in standard Finnish. It does not appear in major dictionaries and has no established meaning or grammatical status in Finnish linguistics. The string resembles elements found in Finnish words such as keskusta (center) or keskustelu (discussion), but there is no valid Finnish inflection or derivation that yields the form keskustesse.
Possible explanations for encountering keskustesse include that it is a typographical error for a nearby, actual
In any case, readers or editors encountering keskustesse should verify the intended form and meaning with the