COTERIE
clique, coterie, ingroup, inner circle, pack, camp
(noun) an exclusive circle of people with a common purpose
Source: WordNet® 3.1
Etymology
Noun
coterie (plural coteries)
A circle of people who associate with one another.
An exclusive group of people, who associate closely for a common purpose.
Synonym: clique
A communal burrow of prairie dogs.
Source: Wiktionary
Co`te*rie" (k`Te-r"; 277), n. Etym: [F., prob. from OF. coterie
servile tenure, fr. colier cotter; of German origin. See 1st Cot.]
Definition: A set or circle of persons who meet familiarly, as for social,
literary, or other purposes; a clique. "The queen of your coterie."
Thackeray.
Source: Webster’s Unabridged Dictionary 1913 Edition