yksityisimmiltä
Yksityisimmiltä is a Finnish word that translates to "from the most private" or "from the most personal." It is the adessive plural form of the adjective yksityinen, meaning private or personal. In Finnish grammar, the adessive case typically indicates location or possession, but it can also express the origin of something. Therefore, yksityisimmiltä suggests coming from a source that is exceptionally private, intimate, or secluded.
The phrase can be used in various contexts. For instance, one might say information comes "yksityisimmiltä tahoilta"