Borrowed from Ukrainian сумни́й (sumnýj). By surface analysis, s- + um + -ny.
sumny (comparative sumniejszy, superlative najsumniejszy, derived adverb sumnie)
singular | plural | |||||
---|---|---|---|---|---|---|
masculine animate | masculine inanimate | feminine | neuter | virile (= masculine personal) | non-virile | |
nominative | sumny | sumna | sumne | sumni | sumne | |
genitive | sumnego | sumnej | sumnego | sumnych | ||
dative | sumnemu | sumnej | sumnemu | sumnym | ||
accusative | sumnego | sumny | sumną | sumne | sumnych | sumne |
instrumental | sumnym | sumną | sumnym | sumnymi | ||
locative | sumnym | sumnej | sumnym | sumnych |