1 GELGJA
u, f. [akin to gálgi], the cheek bones of a fish; gelgju-bein, n. the small bones in the gelgja; hence gelgju-legr or gelgju-leitr, adj. haggard-looking, pinched in the face.
2 GELGJA
II. mythol. the name of the tack or pin belonging to the chain whereby the wolf Fenrir was fastened, F. Edda 221, cp. 20.