kuukausista

Kuukausista is Finnish and represents the elative plural form of kuukausi, meaning “from the months” or “about the months.” It is used in contexts where several months are the reference frame, such as statistics, reports, or longitudinal descriptions. The elative plural is formed with the suffix -ista/-istä attached to the plural stem, so kuukausista conveys origin or source across multiple months.

Etymology and meaning: Kuukausi comes from a compound of kuu (moon) and kausi (season/period). Historically the calendar divided time according to lunar cycles and seasonal periods, a heritage reflected in the modern term kuukausi and its inflected forms. The plural elative kuukausista follows the standard Finnish pattern for expressing origin from multiple items.

Usage: Common uses include data collection and reporting that span multiple months. Examples: “Tiedot on kerätty kuukausista elokuusta lähtien” (Data were collected from the months starting in August). “Kuukausista kerättyjen mittausten perusteella näkyy trendin kääntyminen” (Based on measurements collected from the months, a trend reversal is visible). “Viimeisistä kuukausista saatujen tilastojen mukaan” (According to statistics obtained from the most recent months). In everyday Finnish kuukausista is typically part of a larger phrase rather than a stand-alone noun, and it coexists with related forms such as kuukausi (singular) and kuukausia (partitive or plural).