The occult is practices concerned with magic and hidden powers. An interest in the occult, occult symbols, dabble in the occult.
The word means hidden, which is the whole idea: occult knowledge is knowledge kept from the uninitiated. In medicine the same word is technical and unmysterious — occult blood is blood present but not visible, and testing for it is routine.
1nounoccultPractices concerned with magic and hidden powers.
“He became interested in the occult and spent nights reading about spells and spirits.”
occult is a practice.
Also accepted in games: occultism
Latin
occultus — hidden, secret
English, today
occult
Borrowed from Latin occultus (“hidden, secret”).
Etymology from Wiktionary, CC BY-SA