skemmðarvíg (ON) noun

A shameful killing, similar or perhaps equivalent to a villainous killing (ON níðingsvíg) or villainous deed (ON níðingsverk, see niþingsværk). Three types of shameful killings are listed in Js Mah 5: killing someone after giving guarantees of peace (ON tryggð, see trygth), killing during a truce and committing murder (ON myrða, see myrþa). Other offenses called níðingsvíg are listed in Jó Mah 2, including bodily mutilation and taking vengeance for someone convicted of theft. Those convicted of committing a skemmðarvíg forfeit their lands and lost the right to atone for crimes through compensation (cf. ON óbótamaðr).

shameful killing OIce Jó Mah 1, 2
OIce Js Mah 5, 29
ONorw FrL Mhb 1, 2
ONorw MLL Mah, Rb 1, 2 Refs:

CV s.v. skemmdarvíg; Fritzner s.v. skemdarvíg; Hertzberg s.v. skemdarvíg; KLNM s.v. trygð