herfǫr (noun f.) ‘war-expedition...’

• Sigv Knútdr 6^I/4 — herfarar ‘warfare’ 1038
• Ív Sig 34^II/6 — herfarar ‘the war-expedition’1140
• Anon Nkt 39^II/9 — herfǫr ‘a war-expedition’1190
• Sturl Hákkv 22^II/5 — herför ‘the army-campaign’1263

elements in compounds