felli (noun n.) ‘[felling, toppling]...’

elements in compounds

• Þjsk Lv 2^V (Svarfd 6) — felliGuðr ‘The felling-Guðr’ 965
• Eil Þdr 7^III — fellihryn ‘toppling-noise’ 1000
• Sigv Berv 14^II — fellidómi ‘rulings’ 1038