Definition of cryptogrammatist in US English:

cryptogrammatist

(also cryptogramatist)

noun

  • A person who studies or deciphers cryptograms.

Origin

Late 19th century; earliest use found in Southern Magazine. From crypto- + ancient Greek γραμματ-, γράμμα letter + -ist, after cryptogram and anagrammatist, pangrammatist, epigrammatist.

Pronunciation

cryptogrammatist

/ˌkrɪptəˈɡramətɪst/