Inherited from Old East Slavic оуныти (unyti), from Proto-Slavic *nyti (“to yearn”). By surface analysis, у- (u-) + ныть (nytʹ, “to whimper, to whine, to ache”).
уны́ть • (unýtʹ) pf (imperfective уныва́ть)
| perfective aspect | ||
|---|---|---|
| infinitive | уны́ть unýtʹ | |
| participles | present tense | past tense |
| active | — | уны́вший unývšij |
| passive | — | — |
| adverbial | — | уны́в unýv, уны́вши unývši |
| present tense | future tense | |
| 1st singular (я) | — | — |
| 2nd singular (ты) | — | — |
| 3rd singular (он/она́/оно́) | — | — |
| 1st plural (мы) | — | — |
| 2nd plural (вы) | — | — |
| 3rd plural (они́) | — | — |
| imperative | singular | plural |
| — | — | |
| past tense | singular | plural (мы/вы/они́) |
| masculine (я/ты/он) | уны́л unýl |
уны́ли unýli |
| feminine (я/ты/она́) | уны́ла unýla | |
| neuter (оно́) | уны́ло unýlo | |