camarilla
A secret, usually sinister, group of conspiring advisors close to the leadership; a cabal.
The same lack of accountability has been even more disastrous for the two state-owned banks, which exist primarily to funnel IMF and World Bank funds to the president and his camarilla in the form of unsecured loans.
Where it comes from
Borrowed from Spanish camarilla, from cámara (“chamber”) and the diminutive suffix -illa.
Adapted from the Wiktionary entry camarilla (CC BY-SA 4.0).