Tending to associate closely only with one's own clan or group; unfriendly to outsiders; preferring loyalty to one's own people over others.
From 'clan' + '-ish' (suffix meaning 'having qualities of'), first appearing in 18th-century English to describe the exclusionary behavior historically associated with Scottish clans.
This word actually comes with negative baggage—historians applied it to clans to justify colonization, but clans were really just extended families! The word carries the bias of those who saw clan loyalty as primitive rather than understanding it as practical survival in scattered communities.
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