Hord-geat

According to the Old English Dictionary:

-gat, es;

hord-geat

n. A door through which a treasure is reached :-- Hwylc ðæs hordgates cǽgan cræfte ða clamme onleác which, by the key's art, unlocked the fastenings of the door to the treasure, Exon. 112 a; Th. 429, 28; Rä. 43, 11. hord-geat