Grím-helm

According to the Old English Dictionary:

es;

grím-helm

m. A helmet with a visor; galea larvata, Cd. 151; Th. 188, 27; Exod. 174: 160; Th. 198, 29; Exod. 330: Elen. Kmbl. 516; El. 258: Beo. Th. 674; B. 334. See Grmm. A. E. xxviii; and gríma. grim-helm