rutten + -a, Old Swedish rutna, rotna, same as Danish rådne, Norwegian Bokmål råtne, Icelandic rotna. The adjective rutten (“rotten”) originated as the past participle of a different verb than this one, one of strong conjugation. Both verbs ultimately relate to röta (“rot”). From Old Norse rotna.
ruttna (present ruttnar, preterite ruttnade, supine ruttnat, imperative ruttna)
| Active | Passive | |||
|---|---|---|---|---|
| Infinitive | ruttna | — | ||
| Supine | ruttnat | — | ||
| Imperative | ruttna | — | ||
| Imper. plural1 | ruttnen | — | ||
| Present | Past | Present | Past | |
| Indicative | ruttnar | ruttnade | — | — |
| Ind. plural1 | ruttna | ruttnade | — | — |
| Subjunctive2 | ruttne | ruttnade | — | — |
| Participles | ||||
| Present participle | ruttnande | |||
| Past participle | ruttnad | |||
| 1 Archaic. 2 Dated. See the appendix on Swedish verbs. | ||||