Kroonilisi
Kroonilisi is the partitive plural form of the Estonian adjective krooniline, which means chronic. As a grammatical form, kroonilisi is used when the described noun is in partitive plural or when Estonian grammar requires the partitive case—commonly in negative sentences, after certain verbs, to indicate an indefinite quantity, or to express ongoing, incomplete, or noncount situations.
In meaning, krooniline denotes conditions or phenomena that are long‑lasting, persistent, or recurrent rather than acute
Etymology traces krooniline to the international root chron- (from Greek chronos, “time”), adopted into Estonian through
Usage notes: correct agreement between adjective and noun is required (kroonilisi haigusi, not kroonilisi haigused), and