Yläreunan

Yläreunan is the genitive singular form of the Finnish noun yläreuna, meaning the upper edge or top border of an object. The term is used in Finnish to express possession or relation to the upper edge, for example when describing parts of an object or its geometry.

Etymology and form: yläreuna combines ylä- (upper) and reuna (edge). In possessive phrases, the noun takes the genitive form yläreunan, which then modifies another noun in the genitive or serves as the object of a preposition. Examples include ikkunan yläreunan pituus (the length of the window’s upper edge) and laudan yläreunan muoto (the shape of the board’s upper edge). The form is a regular part of Finnish noun inflection and is not a separate technical concept in itself.

Usage: The term is common in technical, architectural, and craft contexts where specific parts of objects are described. It appears in phrases that refer to measurements, shapes, or modifications of the top edge. In contrast, yläreuna is the basic noun meaning “the upper edge,” and alareuna refers to the lower edge.

See also: yläreuna, alareuna, reuna, Finnish grammar/genitive.

Notes: As a grammatical form, yläreunan serves to link a possessive noun to a description of its upper edge. Its exact meaning is determined by the nouns it connects to and the surrounding context.