kehyset
Kehyset is a term encountered primarily in Finnish-language contexts and is most commonly seen as a variant or nonstandard form relating to the Finnish noun kehys, which means "frame" or "framework." It is not an established technical term in English; rather, it appears in written Finnish as a morphological variation, typographical error, or occasional dialectal form.
Concepts and usage associated with kehyset (or kehykset) include physical frames such as picture and window
In standard contemporary Finnish the regular plural of kehys is kehykset; kehyset may therefore be perceived