Fyrhtan

According to the Old English Dictionary:

fyrhtan

p. fyrhte; pp. tyrhted To FRIGHTEN, terrify, tremble; terrēre tremere :-- Gif lígette and þunorráde eorþan and lyfte brégdon and fyrhton si corusci ac tonitrua terras et aĕra terrērent, Bd. 4, 3; S. 569, 13. Ðú dóest ða fyrhta facis eam tremere, Rtl. 102, 21. DER. a-fyrhtan. fyrhtan