When it comes to what are considered psychic phenomena, there are no shortages for terms meaning the same thing or being biproducts of the same things. Cryptesthesia is described as… n. an experience of clairvoyance, clairaudience, telepathy, or some other form of extrasensory perception that cannot be explained with reference to any known sensory stimulus. Also called telesthesia. A large amount of terms describing something most believe doesn’t exist. crypto- a combining form meaning “hidden,” “secret,” used in the formation of compound words: cryptograph. Also especially before a vowel, crypt-. Sensing the unknown. The word cryptomnesia is a compound of Greek cryptos (hidden, concealed, secret) and mnesia (memory).