Áþ-sweord

According to the Old English Dictionary:

es;

áþ-sweord

n. [áþ an oath, sweord sword] A sword-oath, a warrior's oath, an oath; jusjurandum :-- Ðonne bióþ brocene áþsweord eorla then will be broken the oaths of the warriors, Beo. Th. 4134; B. 2064. aþ-sweord