tulonlähteeseen

Tulonlähteeseen is the illative case form of the Finnish noun tulonlähde, meaning "source of income" or "revenue source." Illative denotes direction toward something, so tulonlähteeseen literally means "to the source of income." In linguistic terms, tulonlähde is a compound of tulon- (genitive of tulo, income) and lähde (source). The illative form tulonlähteeseen is formed by adding the illative ending to the stem tulonlähde.

In usage, tulonlähteeseen appears mainly in written Finnish and in contexts where the direction toward or tracing to an origin is described. It is common in finance, auditing, regulatory language, and data-tracing discussions, where one talks about funds, payments, or information being directed to or investigated at the source of income. It is primarily a grammatical form rather than a separate concept; the meaning arises from the base noun tulonlähde.

See also: tulonlähde, lähde, tulo.