tilillään
Tilillään is a Finnish grammatical construction meaning “on his/her/its account” or “on their account.” It combines tilillä, the adessive form meaning “on the account,” with the third-person possessive suffix, resulting in tilillään. The form can refer to a singular possessor (his or her) or to a plural possessor (their), depending on context.
Usage of tilillään is common in financial and everyday language when indicating where money or records are
Morphologically, tilillään is formed from tilillä plus the third-person possessive suffix -nsä, a standard Finnish pattern
Notes and related forms: tilillä means “on the account” without indicating ownership, while tililleni, tilillesi, tilillesään,