In the ancient world, glossography consisted of interpreting obscure and obsolete words and phrases, antiquated and foreign to the language of the time, either because they were distant in time or because they were expressions used by other peoples. (I found this definition of the word Glossography on Google, I'm not sure this is the exact definition of this word but it makes some sense. Here is the link ( https : //dialnet . unirioja . es ? art . . . PDF )
