decryptv.

/dɪˈkrɪpt/

Etymology: < de- prefix 2a + crypt as in cryptogram n., cryptograph n.; compare Italian decriptare.

1. transitive. To solve (a cryptogram) without knowledge of the key.

ΘΚΠ

the mind > mental capacity > knowledge > secrecy, concealment > code, cipher > decoding, deciphering > decipher [verb (transitive)]

decipher1529

uncipher1598

undecipher1764

decode1896

break1928

decrypt1936

1936 Cryptogram June 4 Those who succeeded in decrypting Message No. 1 of the last issue.

1946 Rep. Joint. Comm. Investigation Pearl Harbor Attack. 79th Congress 2nd Sess. iv. 230 The message was decrypted and translated in rough form on December 6.

1946 Rep. Joint. Comm. Investigation Pearl Harbor Attack. 79th Congress 2nd Sess. iv. 231 No basis exists for criticizing the system which was set up for decrypting and translating the intercepted Japanese messages.

2. transitive. To convert (a cryptogram) into plaintext by proper application of the key.

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1957 R. Watson-Watt Three Steps to Victory liii. 318 Burn all codes save that needed to decrypt the final note.

Derivatives

deˈcrypted adj.

ΚΠ

1967 Punch 30 Aug. 327/1 The lower case was used for decrypted messages.

deˈcrypting n.

ΘΚΠ

the mind > mental capacity > knowledge > secrecy, concealment > code, cipher > decoding, deciphering > [noun]

decipher1545

deciphering1552

decipheration1651

decipherment1782

decipherage1851

decoding1897

cryptanalysis1923

code cracking1931

decrypting1938

code breaking1945

decryption1946

1938 R. Candela Mil. Cipher of Commandant Bazeries 111 Decrypting or Cryptanalysis is that discipline which teaches us how to attempt the restoration of ciphered texts to their intended meaning without the knowledge or use of the cipher or key involved.

deˈcryption n. the deciphering of a cryptogram.

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