What does the word esoteric mean?

Usage examples for esoteric

  1. The admiration, and even the knowledge of Whitman, are mostly esoteric, confined to the literary class. – Brief History of English and American Literature by Henry A. Beers
  2. Nothing indeed so much as his presence encouraged the licence, as I may truly call it, of the legend- that is of our treatment en famille of any reference to the attested public weight of his labours; which, I hasten to add, was much too esoteric a ground of geniality, a dear old family joke, not to be kept, for its value, to ourselves. – Notes of a Son and Brother by Henry James
  3. But let it at once be understood that the Mysticism here contemplated is neither of the popular nor of the esoteric sort. – Nature Mysticism by J. Edward Mercer
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