päätäsi

päätäsi is a Finnish phrase meaning "your head." It is formed by taking the partitive singular form of the noun pää (päätä) and adding the second-person singular possessive suffix -si, resulting in päätäsi, which literally corresponds to “your head.”

In Finnish grammar, the partitive case is often used with verbs that express ongoing states, partial objects, or sensations, such as pain or discomfort. When the head is the object of such a verb, the object is typically in the partitive form, and with possessive suffixes it can become päätäsi to indicate “your head.” This construction is common in everyday speech and is a standard example of Finnish word formation for possessive expressions.

Usage and nuance: päätäsi tends to appear in contexts describing physical sensations or conditions affecting the listener’s head. It is not a separate pronoun but a possessive noun phrase functioning as the object. For example, päätäsi särkee translates to “your head hurts,” a typical way to attribute pain to the listener.

Related forms include päänsä (his/her head) and pää (head) in other cases or with other possessive suffixes. Understanding päätäsi illustrates how Finnish combines nouns, cases, and possessive suffixes to express possessive relationships with direct objects.

See also: Pää, päänsärky, Finnish possessive suffixes, Finnish partitive case.