Þrym-fæst

According to the Old English Dictionary:

þrym-fæst

adj. Glorious, majestic, illustrious, mighty, (1) as epithet of the Deity :-- Mægencyninga Meotod, þrymfæst þeóden, Exon. Th. 58, 31; Cri. 944. Se brego mǽra, þeóden þrymfæst (Christ), 29, 3; Cri. 457: Andr. Kmbl. 645; An. 323. (2) in other connections :-- Eorl unforcúð ... þeóden þrymfæst, Andr. Kmbl. 957; Au. 479. Þrymfæst þeóden (Noah), Cd. Th. 200, 27; Exod. 263. Ic (the cross) þrymfæst hlifige under heofonum, Rood Kmbl. 166; Kr. 84. Se wyrm (a book-worm) forswealg þrymfæstne cwide, Exon. Th. 432, 11; Rä. 48, 4. Þegnas þrymfæste (angels), Cd. Th. 2, 6; Gen. 15. Þeóda þrymfæste, 114, 22; Gen. 1908: 158, 10; Gen. 2615. þrym-fæst