IPA: /ˈklænɪʃli/
KK: /ˈklænɪʃli/
In a way that shows a strong loyalty to one's own group or family, often excluding outsiders.
The members of the community acted clannishly, only supporting those who belonged to their group.
Clannishly → It is formed from "clan" (from Gaelic *clann*, meaning family or offspring) and the suffix "-ly" (meaning in a manner of). The word "clannishly" describes behavior that is characteristic of a clan, often implying exclusivity or close-knit relationships.
Think of the word 'clan' which refers to a family or group, and remember that 'clannishly' means behaving in a way that is typical of a close-knit family.