Definition of superencipherment in English:
superencipherment
(also superencypherment)
noun ˌs(j)uːpərˌɛnˈsʌɪfəm(ə)ntˌs(j)uːpərˌɪnˈsʌɪfəm(ə)nt
The action or process of recoding a message that is already enciphered. Also: an instance or the result of this; a message or code that has been superenciphered.
Origin
1940s. From super- + encipher + -ment. Compare later superencipher.