hapoista
Hapoista is the elative plural form of the Finnish noun happo, meaning “from acids” or “acid-derived.” In Finnish grammar, the elative case expresses origin or source and is formed with the suffix -sta or -stä. Therefore haposta is the singular elative form and hapoista is the plural elative form. The word appears mainly in technical or scientific writing, particularly chemistry, where it describes substances or derivatives that originate from acids.
In use, hapoista functions as part of a noun phrase indicating origin. A common construction is hapoista
Grammatically, happo- forms the stem for related inflections, with the elative plural suffix -ista attaching to
Related terms include happo (acid), hapot (acids, nominative plural), and the elative suffix -sta/-stä used to
See also: happo; hapot; elatiivi (elative) suffix -sta/-stä.