siiven

Siiven is the genitive singular form of the Finnish noun siipi, meaning wing. The word is used to indicate possession or relation to a wing in Finnish, appearing in contexts where the wing is described as belonging to or associated with something, such as the wing of a bird or the wing’s features. The base siipi refers to the limb or structure used for flight in birds, bats, insects, and, in technical language, to aircraft wings as well. In everyday language and scientific writing, siiven complements the nominative siipi when specifying a wing’s relationship to another noun.

In biology and anatomy, siiven denotes the wing as an organ or limb enabling flight in suitable animals. In aviation and engineering contexts, the corresponding term for a flying vehicle’s wing is siipi, while siiven appears in possessive or relational phrases that describe parts, characteristics, or conditions of a wing, such as the wing’s shape or the wing’s load-bearing properties.

The word is a native Finnish term and forms part of standard Finnish vocabulary. It does not denote a separate concept or institution itself; rather, it is a grammatical form used to express ownership or association with a wing. For related terminology, see siipi, the basic word for wing.