verbiperuste

Verbiperuste is a linguistic term used to describe the base form of a verb that serves as the starting point for forming inflected or derived verb forms. It denotes the core element from which endings, affixes, or other modifications are added to express tense, mood, aspect, voice, person, number, or other grammatical categories. In many descriptions, the verbiperuste is closely related to the concept of the stem or the lemma, though terminology can vary between languages and scholarly traditions.

In practice, the verbiperuste functions as the morphologically productive form to which affixes attach. It is the form that researchers and language learners manipulate when constructing verb paradigms or when performing lemmatization and morphological analysis. Depending on the language, the verbiperuste may align with the dictionary form (lemma) or may be a slightly different base that excludes certain infinitive markers, clitics, or other non-stem elements.

The concept is important in dictionary entries, language teaching, and computational morphology, where identifying the correct verbiperuste enables systematic generation of all verb forms and accurate parsing of texts. Some languages exhibit strong stem variations or suppletion, in which multiple verbiperustes exist for different grammatical contexts; in such cases, the term helps distinguish between the invariant base and context-specific surfaces.

See also: lemma, stem, inflection, conjugation, lemmatization, morphological analysis.