Gentilicial

Part of speech: adjective

Definitions

1. Relating to or denoting a name derived from a family or clan, especially in ancient Rome where such names indicated membership in a particular gens
2. Of or pertaining to a surname or epithet that identifies someone as belonging to a particular family or tribal group, especially among classical peoples
3. Designating a name that signifies affiliation with a specific family, tribe, or clan, particularly as used in ancient nomenclature systems

Etymology: "Gentilicial" is a plain formation: Latin "gentīlicius" (belonging to a gens, or clan, from "gēns", "gentis", a family or people) with the English adjective-forming suffix "-al" added on. In Roman usage, "gentīlicius" described a family or clan name, the nomen that marked membership in a gens, so the word's core idea is kinship by descent rather than by place. That sense of belonging to a people or group is what the English adjective keeps. Its meaning centres on relating to a people, nation, or tribe, especially in the context of names or designations derived from one. The Latin root also gave English "gentile," which took a different path, from the Latin "gentilis" (of the same clan or nation, and later used for non-Jews), so the two words are close relatives that diverged in meaning.