Heoru

According to the Old English Dictionary:

heoro, hioro;

heoru

m. A sword, Beo. Th. 2574; B. 1285: Exon. 92 a; Th. 346; 10; Gn. Ex. 202. The word is a poetical one both in English and Icelandic, and in these dialects, as in Old Saxon, is mostly used in compounds, [Goth. hairus: O. Sax. heru (in compounds only): Icel. hjörr.] heoru