Bord-baca

According to the Old English Dictionary:

bord-baca

Substitute: bord-þaca, -þeaca, an; m. I. a board for roofing :-- Bordþacan latrariis, fierst laquear, fierste laquearea, hróf lacunar, Wrt. Voc. ii. 50, 52-55. [Cf. Icel. borð-þak a covering of planks; borð-þekja to cover with planks.] II. a shield-covering, phalanx :-- Bordðeaca, borohaca, brodthaca vel sceldhréda testudo, Txts. 101, 1999. bord-baca