Sceaþan

Según el Diccionario de Inglés Antiguo:

sceaþan

The form corresponding to the Gothic is sceþþan with a strong past tense, but in English a new infinitive sceaþan seems to be developed to suit the strong conjunction, and a new weak past tense to suit the infinitive sceþþan. The strong and weak forms are given separately. sceaþan