auki (noun m.) [°-a; -ar] ‘addition, increase...’

• Bragi Frag 1^III/4 — auka ‘addition’825
• VGl Lv 2^V (Glúm 2)/2 — auka ‘size’965

elements in compounds

• Anon Lil 40^VII — sóttarauka ‘an increase of woe’ 1345
• Herv Lv 10^VIII (Heiðr 27) — moldarauka ‘the increase of the earth’ ?