14päevase
14päevase is an Estonian attributive adjective form meaning “of fourteen days” or “two-week.” It is the genitive singular form used when describing a noun in the genitive or other cases where the noun is not in the nominative. The base adjective is 14päevane, formed by the numeral 14 combined with päev (day) to express a duration of fourteen days. In Estonian, numerals that form compound adjectives decline like other adjectives, so 14päevane becomes 14päevase in the genitive, 14päevasele in the allative, and so on.
The term is common in product descriptions, contracts, and everyday language to specify a two-week timeframe.
In written Estonian, compound numeral adjectives are often hyphenated, appearing as 14-päevane in many contexts, though
The construction of two-week expressions in Estonian, numeral-adjective inflection, and related duration terms such as kahe