cryptogram

As a noun cryptogram

is a type of word puzzle in which text encoded by a simple cipher is to be decoded.

As an adverb cryptogrammatically is

in a cryptogrammatic way; in the form of, or by means of, a cryptogram.

As a noun cryptogram

is (games) a type of word puzzle in which text encoded by a simple cipher is to be decoded.

As an adjective cryptogrammatic is

pertaining to cryptograms.

In lang=en terms the difference between cryptogram and cryptograph

is that cryptogram is a type of word puzzle in which text encoded by a simple cipher is to be decoded while cryptograph is to write text using a code or cipher.

As a verb cryptograph is

to write text using a code or cipher.