oc·cult
əˈkəlt/
noun
noun: occult; plural noun: occults

1.supernatural, mystical, or magical beliefs, practices, or phenomena.
“a secret society to study alchemy and the occult”
synonyms: the supernatural, the paranormal, supernaturalism, magic, black magic, witchcraft, sorcery, necromancy,
wizardry, the black arts, occultism, diabolism, devil worship, devilry, voodoo, hoodoo, white magic, witchery,
mysticism; raretheurgy
“his interest in the occult”

adjective
adjective: occult

1. of, involving, or relating to supernatural, mystical, or magical powers or phenomena.
“a follower of occult practices similar to voodoo”
synonyms: supernatural, magic, magical, mystical, mystic, psychic, preternatural, paranormal, transcendental; More
Kabbalistic, hermetic
“occult powers”
beyond the range of ordinary knowledge or experience; mysterious.
“a weird occult sensation of having experienced the identical situation before”
synonyms: esoteric, arcane, recondite, abstruse, secret; More
obscure, incomprehensible, impenetrable, puzzling, perplexing, mystifying, mysterious, enigmatic
“the typically occult language of the time”
communicated only to the initiated; esoteric.
“the typically occult language of the time”
2.
Medicine
(of a disease or process) not accompanied by readily discernible signs or symptoms.
(of blood) abnormally present, e.g., in feces, but detectable only chemically or microscopically.

verb
verb: occult; 3rd person present: occults; past tense: occulted; past participle: occulted; gerund or present participle: occulting

1.
cut off from view by interposing something.
“a wooden screen designed to occult the competitors”
Astronomy
(of a celestial body) conceal (an apparently smaller body) from view by passing or being in front of it.

Origin
late 15th century (as a verb): from Latin occultare ‘secrete,’ frequentative of occulere ‘conceal,’ based on celare ‘to hide’; the adjective and noun from occult- ‘covered over,’ from the verb occulere .