Þaca
Bosworth & Toller Anglo-Saxon Old English Dictionary - þaca
According to the Old English Dictionary:
þeaca, an;
- þaca
- m. A covering, roof :-- Ðone song hé gehýrde tó him neálǽcan, óð ðæt hé becom tó ðeacan ðære cyricean (ad tectum oratorii), Bd. 4, 3; S. 567, 43. Cf. Bordðeaca, brodthaca testudo, Txts. 101, 1999. Bordþacan latrariis, Wrt. Voc. ii. 50, 52.