| ThisProto-Germanic entry containsreconstructed terms and roots. As such, the term(s) in this entry are not directlyattested, but are hypothesized to have existed based oncomparative evidence. |
FromProto-Indo-European*h₃éh₁os(“mouth”) (apparently reformed as a thematic noun*h₃eh₁ésos). Cognate withLatinōs(“mouth”),Lithuanianúostas(“port, harbour, haven”),Russianуста́(ustá,“mouth, lips”),Sanskritआस्(ā́s,“mouth”).
*ōsaz m
Verner alternation was preserved in this noun, so that some forms had the stem*ōz-. But the distribution of the alternants is currently unknown.
| singular | plural | |
|---|---|---|
| nominative | *ōsaz | *ōsōz, *ōsōs |
| vocative | *ōs | *ōsōz, *ōsōs |
| accusative | *ōsą | *ōsanz |
| genitive | *ōsas, *ōsis | *ōsǫ̂ |
| dative | *ōsai | *ōsamaz |
| instrumental | *ōsō | *ōsamiz |