sairastaa
Sairastaa is a Finnish verb meaning to be ill or to suffer from an illness. It is used to describe a person experiencing illness that lasts beyond a momentary indisposition. In typical usage, the disease or condition is expressed in the partitive case, for example sairastaa flunssaa (to have the flu) or sairastaa vakavaa sairautta (to suffer from a serious illness).
The verb derives from the noun sairaus (illness) and is part of the common Finnish class of
Usage notes and nuance: sairastaa is somewhat more formal or neutral than everyday phrases like olla kipeä
Related forms include sairastua (to fall ill, to become sick) and sairaus (illness). The root forms sairas