Active Voice
Indicative Present
| 1st sing. | serþō |
| 2nd sing. | sirþizi |
| 3rd sing. | sirþidi |
| 1st dual | serþōz |
| 2nd dual | serþadiz |
| 1st plur. | serþamaz |
| 2nd plur. | sirþid |
| 3rd plur. | serþandi |
Indicative Past
| 1st sing. | sarþ |
| 2nd sing. | sarst |
| 3rd sing. | sarþ |
| 1st dual | surdū |
| 2nd dual | surdudiz |
| 1st plur. | surdum |
| 2nd plur. | surdud |
| 3rd plur. | surdun |
Subjunctive Present
| 1st sing. | serþaų |
| 2nd sing. | serþaiz |
| 3rd sing. | serþai |
| 1st dual | serþaiw |
| 2nd dual | serþaidiz |
| 1st plur. | serþaim |
| 2nd plur. | serþaid |
| 3rd plur. | serþain |
Subjunctive Past
| 1st sing. | surdį̄ |
| 2nd sing. | surdīz |
| 3rd sing. | surdī |
| 1st dual | surdīw |
| 2nd dual | surdīdiz |
| 1st plur. | surdīm |
| 2nd plur. | surdīd |
| 3rd plur. | surdīn |
Imperative
| 2nd sing. | serþ |
| 3rd sing. | serþadau |
| 2nd dual | serþadiz |
| 2nd plur. | sirþid |
| 3rd plur. | serþandau |
Passive Voice
Indicative
| 1st sing. | serþai |
| 2nd sing. | serþazai |
| 3rd sing. | serþadai |
| 1st plur. | serþandai |
| 2nd plur. | serþandai |
| 3rd plur. | serþandai |
Subjunctive
| 2nd sing. | serþaizau |
| 3rd sing. | serþaidau |
| 1st plur. | serþaindau |
| 2nd plur. | serþaindau |
| 3rd plur. | serþaindau |
Participles
| Present | serþandz |
| Past | surdanaz |
Etymology
Kroonen reconstructs Proto-Indo-European *sert- (“to hit (?); to rub against, move obliquely against”). Compare Hittite 𒊬𒋫𒄿 (šar-ta-i, “to wipe, rub”) and perhaps Welsh serth (“obscene”). Kloekhorst meanwhile argues for *serdʰH- based on Hittite.
Verbs referencing "serþaną"
English
sard, Icelandic
serða.
Cognates
-