ettäväsuffixistä
Ettäväsuffixi is a Finnish suffix that indicates ability or fitness to be acted upon. It is typically translated as "to be able to" or "fit for." This suffix is attached to the infinitive form of a verb. For example, the verb syödä (to eat) becomes syötävä (edible), meaning something that is able to be eaten. Similarly, luettava (readable) is derived from lukea (to read), and kirjoitettava (writable) from kirjoittaa (to write).
The ettäväsuffixi can also express necessity or obligation in certain contexts, similar to the English "must
It is important to distinguish the ettäväsuffixi from the passive past participle, which often looks identical