Finnish
Derivational suffix
-io (with back vowel harmony)
-iö (with front vowel harmony)
- Forms nouns from verbs or verbal stems.
- itää to sprout -> itiö spore (of eg. mushroom, moss)
- Forms nouns from other nouns, adjectives, numbers or their stems.
- tuomari judge -> tuomio judgement
- kaksi two -> kaksio flat (apartment) for two people
Italian
Suffix
-io
- continuation, strength
- state, condition
Latin
Suffix
-io f, genitive -ionis
- Suffix added to the stem of the perfect passive participle of a verb, to create a verbal noun indicating an action.
Example