ümbriku

Ümbriku is the genitive singular form of the Estonian noun ümbrik, meaning envelope. In Estonian grammar, the genitive singular is used to express possession, association, or relation between nouns, and ümbriku fulfills that function when referring to “of the envelope” or “the envelope’s …” in a phrase. The form is part of the standard inflection pattern for nouns ending in -ik and is commonly found in written and spoken language.

Usage and context are typical of genitive forms in Estonian. Ümbrik itself denotes a lightweight carrier used for mailing letters and documents, as well as other kinds of paper or card packaging that encloses contents. As a common everyday noun, ümbrik appears in contexts ranging from postal services to office administration and personal correspondence. The genitive ümbriku appears whenever a relationship to the envelope is described, such as ownership, association with another object, or part of a larger noun phrase.

In relation to other forms, ümbrik is the base form, with ümbriku serving as its genitive singular. Like many Estonian nouns, its exact inflection can vary with sentence structure and grammatical role, but ümbriku remains a standard and widely understood form for indicating “of the envelope” in practical usage.

See also: ümbrik, Estonian grammar, genitive case.