Esoteric

1. прилагательное эзотерический, тайный, скрытый; известный или понятный лишь посвящённым 2. имя существительное посвящённый

Большой англо-русский словарь

Esoteric

adjective Etymology: Late Latin esotericus, from Greek esōterikos, from esōterō, comparative of eisō, esō within, from eis into; akin to Greek en in — more at in 1. a. designed for or understood by the specially initiated alone Example: a body of esoteric legal doctrine — B. N. Cardozo b. requiring or exhibiting knowledge that is restricted to a small group Example: esoteric terminology Example: esoteric strategies; broadly difficult to understand Example: esoteric subjects 2. a. limited to a small circle Example: engaging in esoteric pursuits b. private, confidential Example: an esoteric purpose 3. of special, rare, or unusual interest Example: esoteric building materialsesoterically adverb

Энциклопедический словарь Мерриама-Вебстера