peamiseid

Peamiseid is the plural partitive form of the Estonian adjective peamine, meaning main or principal. In Estonian grammar, adjectives agree with the nouns they modify in number and case, and the partitive plural form peamiseid is used when the modified noun is in the partitive case or when referring to an indefinite quantity of items considered as the main ones.

Usage of peamiseid occurs mainly in formal, academic, or journalistic text to emphasise the most important elements within a larger set. It is commonly found in phrases such as peamiseid aspekte (the main aspects), peamiseid põhjuseid (the main reasons), or peamiseid tegureid (the main factors). These constructions typically accompany verbs that govern the partitive or describe a non-total subset of elements.

Grammatical note: peamiseid is the plural partitive form of peamine and contrasts with peamised, the nominative plural form used when the subject or topic is simply “the main ones.” The choice between peamiseid and peamised reflects the syntactic role of the noun phrase in the sentence rather than a difference in meaning.

See also: Estonian grammar, partitive case, adjective declension, related constructions with other ordinal or qualitative adjectives.