kiertävätkö
kiertävätkö is a Finnish word, a form of the verb "kiertää" which means to go around, to circulate, or to revolve. The suffix "vät" indicates the third-person plural subject, meaning "they". The ending "kö" is an interrogative particle, turning the statement into a question. Therefore, "kiertävätkö" translates directly to "do they go around?", "do they circulate?", or "do they revolve?".
This question could be asked in various contexts. For example, one might ask "kiertävätkö planeetat auringon