cryptanalyze

[ krip-tan-l-ahyz ]
/ krɪpˈtæn lˌaɪz /

verb (used with object), crypt·an·a·lyzed, crypt·an·a·lyz·ing.

to study (a cryptogram) for the purpose of discovering the clear meaning; break (a code, cipher, etc.).
Also especially British, crypt·an·a·lyse.

Origin of cryptanalyze

see origin at cryptanalysis, analyze