Gest-ærn

According to the Old English Dictionary:

-ern, gyst-ern, es;

gest-ærn

n. A guest-place, guest-chamber, an inn; hospĭtālis aula, hospĭtium, diversōrium :-- Eódon hí on sumes túngeréfan gestærn qui intrāvērunt hospĭtium cujusdam villĭci, Bd. 5, 10; S. 624, 20: Lk. Skt. Lind. Rush. 22, 11. gest-ærn