Sagedusel

Sagedusel is an Estonian grammatical form corresponding to the adessive singular of the noun sagedus, meaning frequency. In linguistic terms, it is used to indicate location, context, or association with a particular frequency. The form is typical of Estonian noun declension, where adessive cases express location or relation, and sagedusel appears in technical or scientific prose to tie statements to a specific frequency.

In usage, sagedusel functions as a locator for measurements, signals, or phenomena described with respect to their frequency. It is commonly found in domains such as physics, engineering, acoustics, and radio technology, where researchers refer to observations “at a given frequency” or “on the frequency X.” The term is most often encountered in formal writing, data reports, and specifications, rather than in everyday speech.

Grammar notes accompany the broader Estonian case system. Sagedusel is one of several case forms built from the base noun sagedus; other forms include the nominative sagedus, genitive sageduse, and illative or allative variants. The choice of case depends on the relationship the writer intends to express between the frequency and the rest of the sentence.

See also: sagedus (frequency), Estonian grammar, Estonian cases.

Note: Sagedusel is a grammatical form rather than a separate technical concept, and its interpretation relies on standard Estonian case usage rather than on domain-specific terminology.