n. murderer, killer

Qethsegol vahrukiv Hrodmir fin Krent, wo sov pah ok eruvos ahrk faraan wah Nos tum krivaan do ok zeymah.
This stone commemorates Hrodmir the Broken, who spent all his years and fortune to Strike down the killer of his brother.
(Word Wall for Nos, Cyclone)

Connotes wrongful killing, not the triumph in battle implied with kriid ‘slayer’.

From kriivah ‘to murder’ with the noun suffix -aan.