Heard-ecg

According to the Old English Dictionary:

heard-ecg

adj. Hard of edge :-- Ðá wæs on healle heardecg togen sweord then in the hall was drawn the sword hard of edge, Beo. Th. 2581; B. 1288: 2984; B. 1490: Elen. Kmbl. 1513; El. 758: Exon. 102 b; Th. 388, 15; Rä. 6, 8. other compounds with ecg. heard-ecg