behelm means to cover; cover over. Lexicurio rates it Rare gem — a strength score of 78 out of 100.
Etymology
From Middle English *behelmen, from Old English behelmian (“to cover over”), equivalent to be- + helm. Related to Old English helan (“to cover”). More at hele.
verb
- To cover; cover over.“And hundred-folded Briareus, and Lerna's Worm of dread Fell hissing; and Chimaera's length and fire-behelmed head, [...]”
- To cover as with a helm or helmet.“Stepped forth a virgin, with behelmed head Like to a martial goddess, fair at once And dreadful to behold; [...]”