Bosworth & Toller Anglo-Saxon Old English Dictionary - horn-geáp
According to the Old English Dictionary:
horn-geáp
adj. Having a wide extent between the 'horns' [
Related words:horn], an epithet of a building :-- Tempel dryhtnes heáh and horngeáp, Andr. Kmbl. 1335; An. 668 : Beo. Th. 164; B. 82. [Cf. under geápne hróf, 1677; B. 836.] horn-geap