hernaðr (noun m.) ‘raiding campaign...’

• Eldj Lv 2^II/4 — hernaðr ‘fighting’1100
• Anon Óldr 6^I/4 — hernað ‘a raiding campaign’1190
• HSt Rst 5^I/4 — hernað ‘raiding campaign’1200
• Bjbp Jóms 17^I/6 — hernuð ‘raiding campaign’?

elements in compounds