the.com/severity

means A measure of how harsh, strict, or serious something is — in software, how much damage a bug does and how urgently it needs fixing.

from From Latin severitas, from severus meaning 'strict, serious, grave.' The root possibly connects to an old Indo-European sense of 'heavy' or 'grim' — the same gravity that gives English 'severe.' It traveled through French into English by the late Middle Ages, always carrying that weight of strictness and seriousness, long before it got recruited into bug trackers to rank how badly your code is on fire.