-ums
FromProto-Balto-Slavic*-mas. Cognates includeLatvian-ums andLithuanian-umas.
-ums
| singular | plural | |
|---|---|---|
| nominative | -ums | -umi |
| genitive | -uma | -umu |
| dative | -umam | -umim |
| accusative | -umu | -umus |
| instrumental | -umu | -umim |
| locative | -umā | -umūs |
| vocative | -um | -umi |
FromProto-Baltic*-umas, possibly from an earlier suffix*-ma(s) added to au-stem (e.g.,Lithuaniansaugùs(“safe, sure”),saugù-mas), from which theu was reinterpreted as part of the suffix and then extended to other stems. Cognate withLithuanian-umas.[1]
-ums