Ísen-hearde
Bosworth & Toller Anglo-Saxon Old English Dictionary - ísen-hearde
According to the Old English Dictionary:
an ;
- ísen-hearde
- f. Ironhard; centaurea nigra, Lchdm. iii. 4, 28 : 22, 31 : 334, col. 2. See Plant Names in E. D. S. Pub. iren-harde, iron-heads, iron-weed. isen-hearde