cryptology vs cryptography

cryptology and cryptography both are nouns.

Word	Noun	Adjective	Verb	Adverb
cryptology	Yes	No	No	No
cryptography	Yes	No	No	No

As nouns, cryptology and cryptography are synonyms defined as:

cryptology and cryptography: the science of analyzing and deciphering codes and ciphers and cryptograms

Other synonyms of cryptology include cryptanalysis, cryptanalytics.

cryptology (noun)	cryptography (noun)
the science of analyzing and deciphering codes and ciphers and cryptograms	act of writing in code or cipher
	the science of analyzing and deciphering codes and ciphers and cryptograms