crypto-, crypt-

(Greek: hidden, secret, secrets, secret writing; by extension, applied to secret code or ciphers)

cryptolinguist (s) (noun), cryptolinguists (pl)
1. Someone or those who specialize in the language of writing, transcribing, or decoding secret messages.
2. A specialist in the language of secret codes and their analysis or interpretations.
cryptologists
A secrecy of cryptologists.
cryptology
cryptomancy
Divination with secret signs, words, etc.; some unrevealed method used by mantics.
cryptomenorrhea
Monthly subjective symptoms of menses without flow of blood; it may be caused by an imperforate hymen or a hymen without an opening.
cryptomnesia (s) (noun) (no plural)
A recollection to the mind about a forgotten situation that seems entirely new to the person: Timothy sat and thought about how his new painting should represent the hillside, not realising that he was experiencing cryptomnesia because the exact view, as a painting, was already hanging in the little museum of the town!
cryptomnesic (adjective); more cryptomnesic, most cryptomnesic
A reference to the reappearance of things that are forgotten or have been suppressed and appear to be completely new: The cryptomnesic difficulties Jane was having in her marriage she thought were unprecedented in her life, but they actually had happened to her parents' marriage as well.
cryptoneurous
With no definite or distinct nervous system.
cryptonym (s) (noun), cryptonyms (pl)
A private or secret name.
cryptonymic (adjective), more cryptonymic, most cryptonymic
A reference to, or a description of, a private or secret name: Many spies are only known by their cryptonymic names for security reasons.
cryptonymous (adjective), more cryptonymous, most cryptonymous
A reference to a name that is concealed or is hidden from others.
cryptophasia
Neologisms that simulate coherent speech despite the fact that they are expressed as unintelligible conglomerations of sounds or written as a series of unintelligible letters.
cryptophthalmos (s) (noun), usually no plural
Congenital absence of eyelids, with the skin passing continuously from the forehead onto the cheek over a rudimentary or non-functional eye: The cryptophthalmos is classified into three types: complete, incomplete and abortive.

Cryptophthalmos usually occurs on both sides and occurs in association with several other malformations collectively referred to as Fraser syndrome.

cryptophyte
A perennial plant with renewal buds below ground or water level; including the geophyte, the helophyte, and the hydrophyte.
cryptophytic

A cross reference of other word family units that are related directly, or indirectly, to: "secret, hidden, confidential, concealed": ceal-; clandesti-; myster-; occult-; orgy; stego-, stegano-.