Þrǽs

According to the Old English Dictionary:

þrǽs

a fringe, border :-- Ðrés, liste limbus, Txts. 75, 1228. Ðrés, thrés oresta, 85, 1455. Ðrǽs, Wrt. Voc. ii. 63, 51. Þrǽs instita, i. 26, 10. Ðrési lymbo, Txts. 75, 1264. Liste oððe þrǽs lembum, listum oððe þrǽsum limbus(-is?), Wrt. Voc. ii. 50, 68, 69. þræs