rauenneeksi
Rauenneeksi is a hypothetical or rarely attested Finnish verb form that would mean “to become calmer” or “to be calmed.” It is formed with the suffix -nneksi attached to a stem derived from the verb raueta (to settle down, to become calmer) or, in theory, from the noun rauha (peace). In Finnish morphology, the suffix -nneksi signals a change of state or transformation into the quality named by the stem, similar to the English construction “to become X.”
Because raueta itself is not always used with a stem compatible with forming rauenneksi, raunenneksi remains
In practice, Finnish speakers who want to convey a similar idea usually use other phrases or constructions,