Cognate to Livonian vēna (“port, Daugava”). Compare Finnish väylä and Proto-Slavic *dveinā (“the river Daugava”). Also compare Finnish väinä, but this similarity in both form and meaning is not mentioned by EES. This etymology is incomplete. You can help Wiktionary by elaborating on the origins of this term.
väin (genitive väina, partitive väina)
| Declension of väin (ÕS type 22u/leib, length gradation) | |||
|---|---|---|---|
| singular | plural | ||
| nominative | väin | väinad | |
| accusative | nom. | ||
| gen. | väina | ||
| genitive | väinade | ||
| partitive | väina | väinu väinasid | |
| illative | väina väinasse |
väinadesse väinusse | |
| inessive | väinas | väinades väinus | |
| elative | väinast | väinadest väinust | |
| allative | väinale | väinadele väinule | |
| adessive | väinal | väinadel väinul | |
| ablative | väinalt | väinadelt väinult | |
| translative | väinaks | väinadeks väinuks | |
| terminative | väinani | väinadeni | |
| essive | väinana | väinadena | |
| abessive | väinata | väinadeta | |
| comitative | väinaga | väinadega | |
väin
väin