Geolca

According to the Old English Dictionary:

gioleca, geoloca, an;

geolca

m. A YOLK; ovi vitellus :-- Sceáwa nú on ánum æge, hú ðæt hwíte ne biþ gemenged to ðam geolcan, and biþ hwæðere án æg look now on an egg, how the white is not mingled with the yolk, and yet it is one egg, Homl. Th. i. 40, 28. On æge biþ gioleca on middan in an egg the yolk is in the middle, Bt. Met. Fox 20, 339; Met. 20, 170. Genim geolocan take the yolk, L. M. 1, 2; Lchdm. ii. 38, 7. geolca