Origin: Greek suffix -ology
Cryptology has 2 different meanings across 1 category:
the science of analyzing and deciphering codes and ciphers and cryptograms
The science or study of mathematical, linguistic, and other coding patterns and histories.
From crypto- + -logy, from Ancient Greek κρυπτός (kruptós, "hidden") + λόγος (lógos, "word"); originally after Latin cryptologia, which is apparently first recorded in an English context.