Heofon-hróf

According to the Old English Dictionary:

es;

heofon-hróf

m. I. the roof of heaven, heaven :-- Under heofunhrófe under the roof of heaven, Exon. 58 a; Th. 209, 19; Ph. 173. II. a roof, ceiling :-- Heofenhróf lacunar, Cot. 119, Lye. [Cf. O. H. Ger. himil laqueare, lacunar, camera: himilizi lacunar, laquear.] heofon-hrof