Cognate with Finnish -sto. This etymology is incomplete. You can help Wiktionary by elaborating on the origins of this term.
-stu (genitive -stu, partitive -stut)
| Declension of -stu (ÕS type 1/ohutu, no gradation) | |||
|---|---|---|---|
| singular | plural | ||
| nominative | -stu | -stud | |
| accusative | nom. | ||
| gen. | -stu | ||
| genitive | -stute | ||
| partitive | -stut | -stuid | |
| illative | -stusse | -stutesse -stuisse | |
| inessive | -stus | -stutes -stuis | |
| elative | -stust | -stutest -stuist | |
| allative | -stule | -stutele -stuile | |
| adessive | -stul | -stutel -stuil | |
| ablative | -stult | -stutelt -stuilt | |
| translative | -stuks | -stuteks -stuiks | |
| terminative | -stuni | -stuteni | |
| essive | -stuna | -stutena | |
| abessive | -stuta | -stuteta | |
| comitative | -stuga | -stutega | |