The name of the river should be linked with Livonian īrva, īra (“doe, female deer”) (compare Estonian hirv, hirbe). This is one of the first toponyms of a place populated by Livonians to be attested – in 1290 as aquam, quae Yrva dicitur.[1]
Īra jo'ug
| singular (ikšlug) | plural (pǟgiņlug) | |
|---|---|---|
| nominative (nominatīv) | Īra joug | – |
| genitive (genitīv) | Īra joug | – |
| partitive (partitīv) | Īra jougõ | – |
| dative (datīv) | Īra jougõn | – |
| instrumental (instrumentāl) | Īra jougkõks | – |
| illative (illatīv) | Īra jougõ | – |
| inessive (inesīv) | Īra jougsõ Īra jougs |
– |
| elative (elatīv) | Īra jougstõ Īra jougst |
– |