Borh-fæst

According to the Old English Dictionary:

borh-fæst

adj. Bound by the giving of security :-- Wolde he gedón ꝥ ic him wære borhfæst . . . and ætfæste hé mé míne efenþeówene [the marriage would be security for continued service], Hml. A. 203, 254. borh-fæst