oferfroren

Meaning

1. frozen over

   Þā wæs Donua sēo ēa swā swīþe oferforen, þæt hīe ġetruwedon þæt hīe ofer þām īse faran mehten, ac hīe mǣst ealle þǣr forwurdon.

   Then the River Danube was so thickly frozen over that they thought they could travel over the ice, but most all of them perished there.

   late 9th century, translation of Orosius’ History Against the Pagans