An Old Norse noun for hatred, enmity, or spite. The University of Copenhagen Dictionary of Old Norse Prose gives the main neuter entry 54 citations, while a separately analyzed masculine entry has only one citation and is flagged as possibly an elementary error. The neuter corpus also contains one cautiously proposed mockery or scorn sense aligned with Latin irrisio. A c.1150-1200 manuscript visibly preserves Hatr in a line ONP transcribes Hatr hafa þeir engla and aligns with Latin Odium. The reviewed ancestry joins the Germanic *hatiz- family, preserves the disputed *ḱh₂d-es- and *ḱeh₂d- comparison, and then stops.