Bælca, balca
Bosworth & Toller Anglo-Saxon Old English Dictionary - bælca, balca
According to the Old English Dictionary:
(-e ?), an;
- bælca, balca
- m. (f. ?). Some kind of wooden fetter (? cf. D. D., s. Regulus plures Poenorum bello captos in vincula conjecerat, Bt. 16, 2; S. 37, 8. balca,bælca