paleography

As a noun paleography

is (us) the study of old/ancient forms of writing.

As an adjective undefined is

lacking a definition or value.

As nouns the difference between epigraphy and paleography

is that epigraphy is inscriptions collectively while paleography is the study of old/ancient forms of writing.

As nouns the difference between paleontology and paleography

is that paleontology is study of the forms of life existing in prehistoric or geologic times, especially as represented by fossils while paleography is the study of old/ancient forms of writing.

As nouns the difference between paleograph and paleography

is that paleograph is an ancient manuscript while paleography is the study of old/ancient forms of writing.

As nouns the difference between paleographs and paleography

is that paleographs is while paleography is (us) the study of old/ancient forms of writing.

Diplomatics is a hypernym of paleography.

As nouns the difference between paleography and diplomatics

is that paleography is the study of old/ancient forms of writing while diplomatics is the science of authenticating, dating, and interpreting old official documents.