Süsteemseid
Süsteemseid is the partitive plural form of the Estonian adjective süsteemne, meaning systemic or pertaining to a system. It is used to describe plural nouns when they are in the partitive case, or when referring to an indefinite amount of systemic characteristics, processes, or phenomena. In practical terms, you will encounter sentences where a noun like haigus, puudujääke, or muudatusi follows the adjective in its partitive plural form.
In usage, süsteemseid commonly appears in technical, scientific, or policy-related texts. Examples include phrases like süsteemseid
A related consideration is the grammatical distinction between forms used with different noun cases. The partitive