tiläinen

Tiläinen is a Finnish surname and, as a common noun, a demonym-forming adjective meaning “from Tilä” or “belonging to Tilä” based on the Finnish suffix -inen. The surname Tiläinen is used by people of Finnish heritage and is capitalized when written as a proper noun.

Etymology and usage: The -inen suffix is a productive derivational element in Finnish that converts place names or descriptors into adjectives or surnames indicating origin or association. Tiläinen most likely derives from a place name such as Tilä or a variation of that root; the exact origin can vary by family. As a descriptor, tiläinen (lowercase) is rarely used outside of compound expressions, where it would function as an ordinary adjective meaning “pertaining to Tilä” or “Tilä-related.”

Distribution: The surname Tiläinen is relatively uncommon in Finland and among Finnish expatriate communities. Like many Finnish surnames, it follows the pattern of capitalizing in proper-noun use but remains lowercase in descriptive phrases.

Notable people: There are no widely known figures universally recognized by the surname Tiläinen; individuals with the name are found primarily in Finnish records and genealogical databases rather than in major international public profiles.