Kaheksakümnendaid

Kaheksakümnendaid is a term in the Estonian language that denotes a particular morphological form of an ordinal numeral. In linguistic and grammatical descriptions it is described as the partitive plural form associated with the ordinal meaning eightieth, used when referring to multiple items that occupy the eighth position in a sequence or list.

Etymology and form. The word is formed from the base for eighty, combined with the ordinal-marking elements found in Estonian numerals, and ends with the partitive plural suffix -eid. This combination yields a form that is analyzed in grammar texts as the plural partitive of the eightieth ordinal. The exact distribution of this form depends on the syntactic role in a sentence and the case system of Estonian.

Usage and context. Kaheksakümnendaid is not a common everyday word in modern speech. It is primarily encountered in linguistic descriptions, grammar references, or historical texts that discuss numeral declension and the behavior of ordinals in Estonian. In typical prose, speakers are more likely to use simpler constructions or alternative ordinal forms unless a precise grammatical discussion warrants this specific form.

Relation to other terms. Related elements include the cardinal eighty (kaheksakümne) and other ordinal forms derived from numerals, which follow the standard Estonian pattern of number formation and case endings. Studying this form provides insight into how Estonian handles numerals inside noun phrases, especially in partitive or plural contexts.

Notes. As with many unique numeral forms, usage can vary by author, register, and historical period. Consultation of contemporary grammar references can clarify current acceptability and exact inflectional patterns in modern Estonian.