Historically Sounaggen – Latvian Saunags, Livonian Sǟnag. L. Kettunen tentatively links this term to a name of a fish common in Finnic languages: Estonian säinas, säinakas, Finnish säynävä, Veps säunged – Lucioperca lucioperca . According to Kettunen's dictionary at least in the 20th century there has been no such a word in the Livonian language, however, according to reconstruction it should have been *säunag. Thus it is possible that the name derives from another Finnic language. Perhaps from Estonian. Like in the case of Pitrõg its historical spelling (Sounaggen) likely reflects its Latvian pronunciation.
Sǟnag
This term has open space locative forms: allative Sǟnagõlõ, adessive Sǟnagõl, ablative Sǟnagõld.
| singular (ikšlug) | plural (pǟgiņlug) | |
|---|---|---|
| nominative (nominatīv) | Sǟnag | – |
| genitive (genitīv) | Sǟnag | – |
| partitive (partitīv) | Sǟnagt | – |
| dative (datīv) | Sǟnagõn | – |
| instrumental (instrumentāl) | Sǟnagõks | – |
| illative (illatīv) | Sǟnagõ | – |
| inessive (inesīv) | Sǟnags | – |
| elative (elatīv) | Sǟnagst | – |