pituisuuden
Pituisuuden is the genitive form of the Finnish abstract noun pituisuus, which denotes the quality of being long or the extent of length. The term is used to discuss length as an inherent property of something, rather than as a specific numerical measurement. In practice, pituisuuden appears in phrases that describe “the length of” or “the longness of” a noun, often in formal or technical contexts.
Etymology and form: Pituisuus is formed with the common Finnish abstract-noun suffix -uus- added to the stem
Usage and distinctions: Pituisuus is generally more formal or specialized than the everyday term pituus, which