territorial
UK: ˌter.ɪˈtɔː.ri.əl | US: ˌter.ɪˈtɔːr.i.əl
adj. relating to territory or land
adj. protective of one's territory (behavioral context, e.g., animals or people)
n. (rare) a person or group asserting territorial dominance
Derived from Latin territorium (land under jurisdiction), itself from terra (earth). The suffix -ial transforms the noun into an adjective. The word evolved through Old French territorie into English, retaining its core meaning of land ownership or control. Over time, it gained behavioral connotations (e.g., "territorial aggression") in zoology and sociology.
The map highlighted territorial boundaries between the two countries.
The cat became territorial when another pet entered its space.
Territorial disputes often arise over natural resources.
Birds are highly territorial during nesting season.
The tribe’s territorial claims were recognized by the government.