Glæs

According to the Old English Dictionary:

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GLÆS

n. Glass :-- Glæs vitrum, Ælfc. Gl. 51; Som. 66, 5; Wrt. Voc. 34, 65. Beorhtre ðonne glæs brighter than glass, Homl. Th. ii. 518, 10. Ðæt scíre glæs the clear glass, Exon. 26 b; Th. 78, 33; Cri. 1283. Ðæt nebb líxeþ swá glæs oððe gim the beak glitters like glass or gem, 60 a; Th. 218, 25; Ph. 300. Biþ ðonne se flǽschoma ascýred swá glæs then shall the body be as transparent as glass, Blickl. Homl. 109, 36. Of glæse geworht made of glass, 127, 33. Mid glase geworht wrought with glass; comptos vitro parietes, Bt. 5, 1; Fox 10, 16. [O. H. Ger. glas, clas vitrum, electrum: Icel. gler.] glæs