> Rimmugýgi. Sigmundur var í pansara. Öxin kom á öxlina og klauf ofan

herðarblaðið.

> Tummult-hag? Sigmund was in chainmail. (these few words on this line

don't appear in MM&HP) The axe came against the shoulder and cleaved
down the shoulder blade

Yes: rimma "tumult, battle"; gýgr "ogre, witch".

'pansari' = 'panzari'. According to Fritzner: a thick padded jacket
worn for protection either under chainmail (brynja), or over
chainmail, or instead of chainmail.

LN