From Proto-Finnic *alaictoin. Cognates include Finnish alaston.
alastoin (comparative alastomamp)
| Declension of alastoin (type 15/koitoin, no gradation) | ||
|---|---|---|
| singular | plural | |
| nominative | alastoin | alastomat |
| genitive | alastoman | alastommiin |
| partitive | alastointa, alastoint | alastommia |
| illative | alastommaa | alastommii |
| inessive | alastomas | alastomis |
| elative | alastomast | alastomist |
| allative | alastomalle | alastomille |
| adessive | alastomal | alastomil |
| ablative | alastomalt | alastomilt |
| translative | alastomaks | alastomiks |
| essive | alastomanna, alastommaan | alastominna, alastommiin |
| exessive1) | alastomant | alastomint |
| 1) obsolete *) the accusative corresponds with either the genitive (sg) or nominative (pl) **) the comitative is formed by adding the suffix -ka? or -kä? to the genitive. | ||